首先说说兼容性的问题吧,主要说说IE浏览器的兼容性。IE10+。

效果展示的css代码：

.button {
margin: .4em;
padding: 1em;
cursor: pointer;
background: #e1e1e1;
text-decoration: none;
color: #666666;
-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

/* 2D TRANSITIONS */
/* Grow */
.grow {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.grow:hover, .grow:focus, .grow:active {
-webkit-transform: scale(1.1);
transform: scale(1.1);
}

/* Shrink */
.shrink {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.shrink:hover, .shrink:focus, .shrink:active {
-webkit-transform: scale(0.9);
transform: scale(0.9);
}

/* Pulse */
@-webkit-keyframes pulse {
25% {
-webkit-transform: scale(1.1);
transform: scale(1.1);
}

75% {
-webkit-transform: scale(0.9);
transform: scale(0.9);
}
}

@keyframes pulse {
25% {
-webkit-transform: scale(1.1);
transform: scale(1.1);
}

75% {
-webkit-transform: scale(0.9);
transform: scale(0.9);
}
}

.pulse {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.pulse:hover, .pulse:focus, .pulse:active {
-webkit-animation-name: pulse;
animation-name: pulse;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
}

/* Pulse Grow */
@-webkit-keyframes pulse-grow {
to {
-webkit-transform: scale(1.1);
transform: scale(1.1);
}
}

@keyframes pulse-grow {
to {
-webkit-transform: scale(1.1);
transform: scale(1.1);
}
}

.pulse-grow {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.pulse-grow:hover, .pulse-grow:focus, .pulse-grow:active {
-webkit-animation-name: pulse-grow;
animation-name: pulse-grow;
-webkit-animation-duration: 0.3s;
animation-duration: 0.3s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
-webkit-animation-direction: alternate;
animation-direction: alternate;
}

/* Pulse Shrink */
@-webkit-keyframes pulse-shrink {
to {
-webkit-transform: scale(0.9);
transform: scale(0.9);
}
}

@keyframes pulse-shrink {
to {
-webkit-transform: scale(0.9);
transform: scale(0.9);
}
}

.pulse-shrink {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.pulse-shrink:hover, .pulse-shrink:focus, .pulse-shrink:active {
-webkit-animation-name: pulse-shrink;
animation-name: pulse-shrink;
-webkit-animation-duration: 0.3s;
animation-duration: 0.3s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
-webkit-animation-direction: alternate;
animation-direction: alternate;
}

/* Push */
@-webkit-keyframes push {
50% {
-webkit-transform: scale(0.8);
transform: scale(0.8);
}

100% {
-webkit-transform: scale(1);
transform: scale(1);
}
}

@keyframes push {
50% {
-webkit-transform: scale(0.8);
transform: scale(0.8);
}

100% {
-webkit-transform: scale(1);
transform: scale(1);
}
}

.push {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.push:hover, .push:focus, .push:active {
-webkit-animation-name: push;
animation-name: push;
-webkit-animation-duration: 0.3s;
animation-duration: 0.3s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Pop */
@-webkit-keyframes pop {
50% {
-webkit-transform: scale(1.2);
transform: scale(1.2);
}

100% {
-webkit-transform: scale(1);
transform: scale(1);
}
}

@keyframes pop {
50% {
-webkit-transform: scale(1.2);
transform: scale(1.2);
}

100% {
-webkit-transform: scale(1);
transform: scale(1);
}
}

.pop {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.pop:hover, .pop:focus, .pop:active {
-webkit-animation-name: pop;
animation-name: pop;
-webkit-animation-duration: 0.3s;
animation-duration: 0.3s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Rotate */
.rotate {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.rotate:hover, .rotate:focus, .rotate:active {
-webkit-transform: rotate(4deg);
transform: rotate(4deg);
}

/* Grow Rotate */
.grow-rotate {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.grow-rotate:hover, .grow-rotate:focus, .grow-rotate:active {
-webkit-transform: scale(1.1) rotate(4deg);
transform: scale(1.1) rotate(4deg);
}

/* Float */
.float {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.float:hover, .float:focus, .float:active {
-webkit-transform: translateY(-5px);
transform: translateY(-5px);
}

/* Sink */
.sink {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.sink:hover, .sink:focus, .sink:active {
-webkit-transform: translateY(5px);
transform: translateY(5px);
}

/* Hover */
@-webkit-keyframes hover {
50% {
-webkit-transform: translateY(-3px);
transform: translateY(-3px);
}

100% {
-webkit-transform: translateY(-6px);
transform: translateY(-6px);
}
}

@keyframes hover {
50% {
-webkit-transform: translateY(-3px);
transform: translateY(-3px);
}

100% {
-webkit-transform: translateY(-6px);
transform: translateY(-6px);
}
}

.hover {
display: inline-block;
-webkit-transition-duration: 0.5s;
transition-duration: 0.5s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.hover:hover, .hover:focus, .hover:active {
-webkit-transform: translateY(-6px);
transform: translateY(-6px);
-webkit-animation-name: hover;
animation-name: hover;
-webkit-animation-duration: 1.5s;
animation-duration: 1.5s;
-webkit-animation-delay: 0.3s;
animation-delay: 0.3s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
-webkit-animation-direction: alternate;
animation-direction: alternate;
}

/* Hang */
@-webkit-keyframes hang {
50% {
-webkit-transform: translateY(3px);
transform: translateY(3px);
}

100% {
-webkit-transform: translateY(6px);
transform: translateY(6px);
}
}

@keyframes hang {
50% {
-webkit-transform: translateY(3px);
transform: translateY(3px);
}

100% {
-webkit-transform: translateY(6px);
transform: translateY(6px);
}
}

.hang {
display: inline-block;
-webkit-transition-duration: 0.5s;
transition-duration: 0.5s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.hang:hover, .hang:focus, .hang:active {
-webkit-transform: translateY(6px);
transform: translateY(6px);
-webkit-animation-name: hang;
animation-name: hang;
-webkit-animation-duration: 1.5s;
animation-duration: 1.5s;
-webkit-animation-delay: 0.3s;
animation-delay: 0.3s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
-webkit-animation-direction: alternate;
animation-direction: alternate;
}

/* Skew */
.skew {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.skew:hover, .skew:focus, .skew:active {
-webkit-transform: skew(-10deg);
transform: skew(-10deg);
}

/* Skew Forward */
.skew-forward {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform-origin: 0 100%;
transform-origin: 0 100%;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.skew-forward:hover, .skew-forward:focus, .skew-forward:active {
-webkit-transform: skew(-10deg);
transform: skew(-10deg);
}

/* Skew Backward */
.skew-backward {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform-origin: 0 100%;
transform-origin: 0 100%;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.skew-backward:hover, .skew-backward:focus, .skew-backward:active {
-webkit-transform: skew(10deg);
transform: skew(10deg);
}

/* Wobble Vertical */
@-webkit-keyframes wobble-vertical {
16.65% {
-webkit-transform: translateY(8px);
transform: translateY(8px);
}

33.3% {
-webkit-transform: translateY(-6px);
transform: translateY(-6px);
}

49.95% {
-webkit-transform: translateY(4px);
transform: translateY(4px);
}

66.6% {
-webkit-transform: translateY(-2px);
transform: translateY(-2px);
}

83.25% {
-webkit-transform: translateY(1px);
transform: translateY(1px);
}

100% {
-webkit-transform: translateY(0);
transform: translateY(0);
}
}

@keyframes wobble-vertical {
16.65% {
-webkit-transform: translateY(8px);
transform: translateY(8px);
}

33.3% {
-webkit-transform: translateY(-6px);
transform: translateY(-6px);
}

49.95% {
-webkit-transform: translateY(4px);
transform: translateY(4px);
}

66.6% {
-webkit-transform: translateY(-2px);
transform: translateY(-2px);
}

83.25% {
-webkit-transform: translateY(1px);
transform: translateY(1px);
}

100% {
-webkit-transform: translateY(0);
transform: translateY(0);
}
}

.wobble-vertical {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.wobble-vertical:hover, .wobble-vertical:focus, .wobble-vertical:active {
-webkit-animation-name: wobble-vertical;
animation-name: wobble-vertical;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-timing-function: ease-in-out;
animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Wobble Horizontal */
@-webkit-keyframes wobble-horizontal {
16.65% {
-webkit-transform: translateX(8px);
transform: translateX(8px);
}

33.3% {
-webkit-transform: translateX(-6px);
transform: translateX(-6px);
}

49.95% {
-webkit-transform: translateX(4px);
transform: translateX(4px);
}

66.6% {
-webkit-transform: translateX(-2px);
transform: translateX(-2px);
}

83.25% {
-webkit-transform: translateX(1px);
transform: translateX(1px);
}

100% {
-webkit-transform: translateX(0);
transform: translateX(0);
}
}

@keyframes wobble-horizontal {
16.65% {
-webkit-transform: translateX(8px);
transform: translateX(8px);
}

33.3% {
-webkit-transform: translateX(-6px);
transform: translateX(-6px);
}

49.95% {
-webkit-transform: translateX(4px);
transform: translateX(4px);
}

66.6% {
-webkit-transform: translateX(-2px);
transform: translateX(-2px);
}

83.25% {
-webkit-transform: translateX(1px);
transform: translateX(1px);
}

100% {
-webkit-transform: translateX(0);
transform: translateX(0);
}
}

.wobble-horizontal {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.wobble-horizontal:hover, .wobble-horizontal:focus, .wobble-horizontal:active {
-webkit-animation-name: wobble-horizontal;
animation-name: wobble-horizontal;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-timing-function: ease-in-out;
animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Wobble To Bottom Right */
@-webkit-keyframes wobble-to-bottom-right {
16.65% {
-webkit-transform: translate(8px, 8px);
transform: translate(8px, 8px);
}

33.3% {
-webkit-transform: translate(-6px, -6px);
transform: translate(-6px, -6px);
}

49.95% {
-webkit-transform: translate(4px, 4px);
transform: translate(4px, 4px);
}

66.6% {
-webkit-transform: translate(-2px, -2px);
transform: translate(-2px, -2px);
}

83.25% {
-webkit-transform: translate(1px, 1px);
transform: translate(1px, 1px);
}

100% {
-webkit-transform: translate(0, 0);
transform: translate(0, 0);
}
}

@keyframes wobble-to-bottom-right {
16.65% {
-webkit-transform: translate(8px, 8px);
transform: translate(8px, 8px);
}

33.3% {
-webkit-transform: translate(-6px, -6px);
transform: translate(-6px, -6px);
}

49.95% {
-webkit-transform: translate(4px, 4px);
transform: translate(4px, 4px);
}

66.6% {
-webkit-transform: translate(-2px, -2px);
transform: translate(-2px, -2px);
}

83.25% {
-webkit-transform: translate(1px, 1px);
transform: translate(1px, 1px);
}

100% {
-webkit-transform: translate(0, 0);
transform: translate(0, 0);
}
}

.wobble-to-bottom-right {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.wobble-to-bottom-right:hover, .wobble-to-bottom-right:focus, .wobble-to-bottom-right:active {
-webkit-animation-name: wobble-to-bottom-right;
animation-name: wobble-to-bottom-right;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-timing-function: ease-in-out;
animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Wobble To Top Right */
@-webkit-keyframes wobble-to-top-right {
16.65% {
-webkit-transform: translate(8px, -8px);
transform: translate(8px, -8px);
}

33.3% {
-webkit-transform: translate(-6px, 6px);
transform: translate(-6px, 6px);
}

49.95% {
-webkit-transform: translate(4px, -4px);
transform: translate(4px, -4px);
}

66.6% {
-webkit-transform: translate(-2px, 2px);
transform: translate(-2px, 2px);
}

83.25% {
-webkit-transform: translate(1px, -1px);
transform: translate(1px, -1px);
}

100% {
-webkit-transform: translate(0, 0);
transform: translate(0, 0);
}
}

@keyframes wobble-to-top-right {
16.65% {
-webkit-transform: translate(8px, -8px);
transform: translate(8px, -8px);
}

33.3% {
-webkit-transform: translate(-6px, 6px);
transform: translate(-6px, 6px);
}

49.95% {
-webkit-transform: translate(4px, -4px);
transform: translate(4px, -4px);
}

66.6% {
-webkit-transform: translate(-2px, 2px);
transform: translate(-2px, 2px);
}

83.25% {
-webkit-transform: translate(1px, -1px);
transform: translate(1px, -1px);
}

100% {
-webkit-transform: translate(0, 0);
transform: translate(0, 0);
}
}

.wobble-to-top-right {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.wobble-to-top-right:hover, .wobble-to-top-right:focus, .wobble-to-top-right:active {
-webkit-animation-name: wobble-to-top-right;
animation-name: wobble-to-top-right;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-timing-function: ease-in-out;
animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Wobble Top */
@-webkit-keyframes wobble-top {
16.65% {
-webkit-transform: skew(-12deg);
transform: skew(-12deg);
}

33.3% {
-webkit-transform: skew(10deg);
transform: skew(10deg);
}

49.95% {
-webkit-transform: skew(-6deg);
transform: skew(-6deg);
}

66.6% {
-webkit-transform: skew(4deg);
transform: skew(4deg);
}

83.25% {
-webkit-transform: skew(-2deg);
transform: skew(-2deg);
}

100% {
-webkit-transform: skew(0);
transform: skew(0);
}
}

@keyframes wobble-top {
16.65% {
-webkit-transform: skew(-12deg);
transform: skew(-12deg);
}

33.3% {
-webkit-transform: skew(10deg);
transform: skew(10deg);
}

49.95% {
-webkit-transform: skew(-6deg);
transform: skew(-6deg);
}

66.6% {
-webkit-transform: skew(4deg);
transform: skew(4deg);
}

83.25% {
-webkit-transform: skew(-2deg);
transform: skew(-2deg);
}

100% {
-webkit-transform: skew(0);
transform: skew(0);
}
}

.wobble-top {
display: inline-block;
-webkit-transform-origin: 0 100%;
transform-origin: 0 100%;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.wobble-top:hover, .wobble-top:focus, .wobble-top:active {
-webkit-animation-name: wobble-top;
animation-name: wobble-top;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-timing-function: ease-in-out;
animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Wobble Bottom */
@-webkit-keyframes wobble-bottom {
16.65% {
-webkit-transform: skew(-12deg);
transform: skew(-12deg);
}

33.3% {
-webkit-transform: skew(10deg);
transform: skew(10deg);
}

49.95% {
-webkit-transform: skew(-6deg);
transform: skew(-6deg);
}

66.6% {
-webkit-transform: skew(4deg);
transform: skew(4deg);
}

83.25% {
-webkit-transform: skew(-2deg);
transform: skew(-2deg);
}

100% {
-webkit-transform: skew(0);
transform: skew(0);
}
}

@keyframes wobble-bottom {
16.65% {
-webkit-transform: skew(-12deg);
transform: skew(-12deg);
}

33.3% {
-webkit-transform: skew(10deg);
transform: skew(10deg);
}

49.95% {
-webkit-transform: skew(-6deg);
transform: skew(-6deg);
}

66.6% {
-webkit-transform: skew(4deg);
transform: skew(4deg);
}

83.25% {
-webkit-transform: skew(-2deg);
transform: skew(-2deg);
}

100% {
-webkit-transform: skew(0);
transform: skew(0);
}
}

.wobble-bottom {
display: inline-block;
-webkit-transform-origin: 100% 0;
transform-origin: 100% 0;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.wobble-bottom:hover, .wobble-bottom:focus, .wobble-bottom:active {
-webkit-animation-name: wobble-bottom;
animation-name: wobble-bottom;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-timing-function: ease-in-out;
animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Wobble Skew */
@-webkit-keyframes wobble-skew {
16.65% {
-webkit-transform: skew(-12deg);
transform: skew(-12deg);
}

33.3% {
-webkit-transform: skew(10deg);
transform: skew(10deg);
}

49.95% {
-webkit-transform: skew(-6deg);
transform: skew(-6deg);
}

66.6% {
-webkit-transform: skew(4deg);
transform: skew(4deg);
}

83.25% {
-webkit-transform: skew(-2deg);
transform: skew(-2deg);
}

100% {
-webkit-transform: skew(0);
transform: skew(0);
}
}

@keyframes wobble-skew {
16.65% {
-webkit-transform: skew(-12deg);
transform: skew(-12deg);
}

33.3% {
-webkit-transform: skew(10deg);
transform: skew(10deg);
}

49.95% {
-webkit-transform: skew(-6deg);
transform: skew(-6deg);
}

66.6% {
-webkit-transform: skew(4deg);
transform: skew(4deg);
}

83.25% {
-webkit-transform: skew(-2deg);
transform: skew(-2deg);
}

100% {
-webkit-transform: skew(0);
transform: skew(0);
}
}

.wobble-skew {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.wobble-skew:hover, .wobble-skew:focus, .wobble-skew:active {
-webkit-animation-name: wobble-skew;
animation-name: wobble-skew;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-timing-function: ease-in-out;
animation-timing-function: ease-in-out;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* Buzz */
@-webkit-keyframes buzz {
50% {
-webkit-transform: translateX(3px) rotate(2deg);
transform: translateX(3px) rotate(2deg);
}

100% {
-webkit-transform: translateX(-3px) rotate(-2deg);
transform: translateX(-3px) rotate(-2deg);
}
}

@keyframes buzz {
50% {
-webkit-transform: translateX(3px) rotate(2deg);
transform: translateX(3px) rotate(2deg);
}

100% {
-webkit-transform: translateX(-3px) rotate(-2deg);
transform: translateX(-3px) rotate(-2deg);
}
}

.buzz {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.buzz:hover, .buzz:focus, .buzz:active {
-webkit-animation-name: buzz;
animation-name: buzz;
-webkit-animation-duration: 0.15s;
animation-duration: 0.15s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
}

/* Buzz Out */
@-webkit-keyframes buzz-out {
10% {
-webkit-transform: translateX(3px) rotate(2deg);
transform: translateX(3px) rotate(2deg);
}

20% {
-webkit-transform: translateX(-3px) rotate(-2deg);
transform: translateX(-3px) rotate(-2deg);
}

30% {
-webkit-transform: translateX(3px) rotate(2deg);
transform: translateX(3px) rotate(2deg);
}

40% {
-webkit-transform: translateX(-3px) rotate(-2deg);
transform: translateX(-3px) rotate(-2deg);
}

50% {
-webkit-transform: translateX(2px) rotate(1deg);
transform: translateX(2px) rotate(1deg);
}

60% {
-webkit-transform: translateX(-2px) rotate(-1deg);
transform: translateX(-2px) rotate(-1deg);
}

70% {
-webkit-transform: translateX(2px) rotate(1deg);
transform: translateX(2px) rotate(1deg);
}

80% {
-webkit-transform: translateX(-2px) rotate(-1deg);
transform: translateX(-2px) rotate(-1deg);
}

90% {
-webkit-transform: translateX(1px) rotate(0);
transform: translateX(1px) rotate(0);
}

100% {
-webkit-transform: translateX(-1px) rotate(0);
transform: translateX(-1px) rotate(0);
}
}

@keyframes buzz-out {
10% {
-webkit-transform: translateX(3px) rotate(2deg);
transform: translateX(3px) rotate(2deg);
}

20% {
-webkit-transform: translateX(-3px) rotate(-2deg);
transform: translateX(-3px) rotate(-2deg);
}

30% {
-webkit-transform: translateX(3px) rotate(2deg);
transform: translateX(3px) rotate(2deg);
}

40% {
-webkit-transform: translateX(-3px) rotate(-2deg);
transform: translateX(-3px) rotate(-2deg);
}

50% {
-webkit-transform: translateX(2px) rotate(1deg);
transform: translateX(2px) rotate(1deg);
}

60% {
-webkit-transform: translateX(-2px) rotate(-1deg);
transform: translateX(-2px) rotate(-1deg);
}

70% {
-webkit-transform: translateX(2px) rotate(1deg);
transform: translateX(2px) rotate(1deg);
}

80% {
-webkit-transform: translateX(-2px) rotate(-1deg);
transform: translateX(-2px) rotate(-1deg);
}

90% {
-webkit-transform: translateX(1px) rotate(0);
transform: translateX(1px) rotate(0);
}

100% {
-webkit-transform: translateX(-1px) rotate(0);
transform: translateX(-1px) rotate(0);
}
}

.buzz-out {
display: inline-block;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.buzz-out:hover, .buzz-out:focus, .buzz-out:active {
-webkit-animation-name: buzz-out;
animation-name: buzz-out;
-webkit-animation-duration: 0.75s;
animation-duration: 0.75s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: 1;
animation-iteration-count: 1;
}

/* BORDER TRANSITIONS */
/* Border Fade */
.border-fade {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: box-shadow;
transition-property: box-shadow;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: inset 0 0 0 4px #e1e1e1, 0 0 1px rgba(0, 0, 0, 0);
/* Hack to improve aliasing on mobile/tablet devices */
}
.border-fade:hover, .border-fade:focus, .border-fade:active {
box-shadow: inset 0 0 0 4px #666666, 0 0 1px rgba(0, 0, 0, 0);
/* Hack to improve aliasing on mobile/tablet devices */
}

/* Hollow */
.hollow {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: background;
transition-property: background;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: inset 0 0 0 4px #e1e1e1, 0 0 1px rgba(0, 0, 0, 0);
/* Hack to improve aliasing on mobile/tablet devices */
}
.hollow:hover, .hollow:focus, .hollow:active {
background: none;
}

/* Trim */
.trim {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.trim:before {
content: '';
position: absolute;
border: white solid 4px;
top: 4px;
left: 4px;
right: 4px;
bottom: 4px;
opacity: 0;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: opacity;
transition-property: opacity;
}
.trim:hover:before, .trim:focus:before, .trim:active:before {
opacity: 1;
}

/* Outline Outward */
.outline-outward {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.outline-outward:before {
content: '';
position: absolute;
border: #e1e1e1 solid 4px;
top: 0;
right: 0;
bottom: 0;
left: 0;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: top, right, bottom, left;
transition-property: top, right, bottom, left;
}
.outline-outward:hover:before, .outline-outward:focus:before, .outline-outward:active:before {
top: -8px;
right: -8px;
bottom: -8px;
left: -8px;
}

/* Outline Inward */
.outline-inward {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.outline-inward:before {
pointer-events: none;
content: '';
position: absolute;
border: #e1e1e1 solid 4px;
top: -16px;
right: -16px;
bottom: -16px;
left: -16px;
opacity: 0;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: top, right, bottom, left;
transition-property: top, right, bottom, left;
}
.outline-inward:hover:before, .outline-inward:focus:before, .outline-inward:active:before {
top: -8px;
right: -8px;
bottom: -8px;
left: -8px;
opacity: 1;
}

/* Round Corners */
.round-corners {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: border-radius;
transition-property: border-radius;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.round-corners:hover, .round-corners:focus, .round-corners:active {
border-radius: 1em;
}

/* SHADOW/GLOW TRANSITIONS */
/* Glow */
.glow {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: box-shadow;
transition-property: box-shadow;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.glow:hover, .glow:focus, .glow:active {
box-shadow: 0 0 8px rgba(0, 0, 0, 0.6);
}

/* Box Shadow Outset */
.box-shadow-outset {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: box-shadow;
transition-property: box-shadow;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.box-shadow-outset:hover, .box-shadow-outset:focus, .box-shadow-outset:active {
box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.6);
}

/* Box Shadow Inset */
.box-shadow-inset {
display: inline-block;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: box-shadow;
transition-property: box-shadow;
box-shadow: inset 0 0 0 rgba(0, 0, 0, 0.6), 0 0 1px rgba(0, 0, 0, 0);
/* Hack to improve aliasing on mobile/tablet devices */
-webkit-transform: translateZ(0);
transform: translateZ(0);
}
.box-shadow-inset:hover, .box-shadow-inset:focus, .box-shadow-inset:active {
box-shadow: inset 2px 2px 2px rgba(0, 0, 0, 0.6), 0 0 1px rgba(0, 0, 0, 0);
/* Hack to improve aliasing on mobile/tablet devices */
}

/* Float Shadow */
.float-shadow {
display: inline-block;
position: relative;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.float-shadow:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
top: 100%;
left: 5%;
height: 10px;
width: 90%;
opacity: 0;
background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0) 80%);
/* W3C */
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform, opacity;
transition-property: transform, opacity;
}
.float-shadow:hover, .float-shadow:focus, .float-shadow:active {
-webkit-transform: translateY(-5px);
transform: translateY(-5px);
/* move the element up by 5px */
}
.float-shadow:hover:before, .float-shadow:focus:before, .float-shadow:active:before {
opacity: 1;
-webkit-transform: translateY(5px);
transform: translateY(5px);
/* move the element down by 5px (it will stay in place because it's attached to the element that also moves up 5px) */
}

/* Hover Shadow */
@-webkit-keyframes hover {
50% {
-webkit-transform: translateY(-3px);
transform: translateY(-3px);
}

100% {
-webkit-transform: translateY(-6px);
transform: translateY(-6px);
}
}

@keyframes hover {
50% {
-webkit-transform: translateY(-3px);
transform: translateY(-3px);
}

100% {
-webkit-transform: translateY(-6px);
transform: translateY(-6px);
}
}

@-webkit-keyframes hover-shadow {
0% {
-webkit-transform: translateY(6px);
transform: translateY(6px);
opacity: .4;
}

50% {
-webkit-transform: translateY(3px);
transform: translateY(3px);
opacity: 1;
}

100% {
-webkit-transform: translateY(6px);
transform: translateY(6px);
opacity: .4;
}
}

@keyframes hover-shadow {
0% {
-webkit-transform: translateY(6px);
transform: translateY(6px);
opacity: .4;
}

50% {
-webkit-transform: translateY(3px);
transform: translateY(3px);
opacity: 1;
}

100% {
-webkit-transform: translateY(6px);
transform: translateY(6px);
opacity: .4;
}
}

.hover-shadow {
display: inline-block;
position: relative;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.hover-shadow:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
top: 100%;
left: 5%;
height: 10px;
width: 90%;
opacity: 0;
background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0) 80%);
/* W3C */
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform, opacity;
transition-property: transform, opacity;
}
.hover-shadow:hover, .hover-shadow:focus, .hover-shadow:active {
-webkit-transform: translateY(-6px);
transform: translateY(-6px);
-webkit-animation-name: hover;
animation-name: hover;
-webkit-animation-duration: 1.5s;
animation-duration: 1.5s;
-webkit-animation-delay: 0.3s;
animation-delay: 0.3s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
-webkit-animation-direction: alternate;
animation-direction: alternate;
}
.hover-shadow:hover:before, .hover-shadow:focus:before, .hover-shadow:active:before {
opacity: .4;
-webkit-transform: translateY(6px);
transform: translateY(6px);
-webkit-animation-name: hover-shadow;
animation-name: hover-shadow;
-webkit-animation-duration: 1.5s;
animation-duration: 1.5s;
-webkit-animation-delay: 0.3s;
animation-delay: 0.3s;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
-webkit-animation-direction: alternate;
animation-direction: alternate;
}

/* Shadow Radial */
.shadow-radial {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.shadow-radial:before, .shadow-radial:after {
pointer-events: none;
position: absolute;
content: '';
left: 0;
width: 100%;
box-sizing: border-box;
background-repeat: no-repeat;
height: 5px;
opacity: 0;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: opacity;
transition-property: opacity;
}
.shadow-radial:before {
bottom: 100%;
background: radial-gradient(ellipse at 50% 150%, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 80%);
}
.shadow-radial:after {
top: 100%;
background: radial-gradient(ellipse at 50% -50%, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 80%);
}
.shadow-radial:hover:before, .shadow-radial:focus:before, .shadow-radial:active:before, .shadow-radial:hover:after, .shadow-radial:focus:after, .shadow-radial:active:after {
opacity: 1;
}

/* SPEECH BUBBLES */
/* Bubble Top */
.bubble-top {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.bubble-top:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
border-style: solid;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: top;
transition-property: top;
left: calc(50% - 10px);
top: 0;
border-width: 0 10px 10px 10px;
border-color: transparent transparent #e1e1e1 transparent;
}
.bubble-top:hover:before, .bubble-top:focus:before, .bubble-top:active:before {
top: -10px;
}

/* Bubble Right */
.bubble-right {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.bubble-right:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
border-style: solid;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: right;
transition-property: right;
top: calc(50% - 10px);
right: 0;
border-width: 10px 0 10px 10px;
border-color: transparent transparent transparent #e1e1e1;
}
.bubble-right:hover:before, .bubble-right:focus:before, .bubble-right:active:before {
right: -10px;
}

/* Bubble Bottom */
.bubble-bottom {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.bubble-bottom:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
border-style: solid;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: bottom;
transition-property: bottom;
left: calc(50% - 10px);
bottom: 0;
border-width: 10px 10px 0 10px;
border-color: #e1e1e1 transparent transparent transparent;
}
.bubble-bottom:hover:before, .bubble-bottom:focus:before, .bubble-bottom:active:before {
bottom: -10px;
}

/* Bubble Left */
.bubble-left {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.bubble-left:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
border-style: solid;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: left;
transition-property: left;
top: calc(50% - 10px);
left: 0;
border-width: 10px 10px 10px 0;
border-color: transparent #e1e1e1 transparent transparent;
}
.bubble-left:hover:before, .bubble-left:focus:before, .bubble-left:active:before {
left: -10px;
}

/* Bubble Float Top */
.bubble-float-top {
display: inline-block;
position: relative;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.bubble-float-top:before {
position: absolute;
z-index: -1;
content: '';
left: calc(50% - 10px);
top: 0;
border-style: solid;
border-width: 0 10px 10px 10px;
border-color: transparent transparent #e1e1e1 transparent;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: top;
transition-property: top;
}
.bubble-float-top:hover, .bubble-float-top:focus, .bubble-float-top:active {
-webkit-transform: translateY(5px) translateZ(0);
transform: translateY(5px) translateZ(0);
}
.bubble-float-top:hover:before, .bubble-float-top:focus:before, .bubble-float-top:active:before {
top: -10px;
}

/* Bubble Float Right */
.bubble-float-right {
display: inline-block;
position: relative;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.bubble-float-right:before {
position: absolute;
z-index: -1;
top: calc(50% - 10px);
right: 0;
content: '';
border-style: solid;
border-width: 10px 0 10px 10px;
border-color: transparent transparent transparent #e1e1e1;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: right;
transition-property: right;
}
.bubble-float-right:hover, .bubble-float-right:focus, .bubble-float-right:active {
-webkit-transform: translateX(-5px);
transform: translateX(-5px);
}
.bubble-float-right:hover:before, .bubble-float-right:focus:before, .bubble-float-right:active:before {
right: -10px;
}

/* Bubble Float Bottom */
.bubble-float-bottom {
display: inline-block;
position: relative;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.bubble-float-bottom:before {
position: absolute;
z-index: -1;
content: '';
left: calc(50% - 10px);
bottom: 0;
border-style: solid;
border-width: 10px 10px 0 10px;
border-color: #e1e1e1 transparent transparent transparent;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: bottom;
transition-property: bottom;
}
.bubble-float-bottom:hover, .bubble-float-bottom:focus, .bubble-float-bottom:active {
-webkit-transform: translateY(-5px) translateZ(0);
transform: translateY(-5px) translateZ(0);
}
.bubble-float-bottom:hover:before, .bubble-float-bottom:focus:before, .bubble-float-bottom:active:before {
bottom: -10px;
}

/* Bubble Float Left */
.bubble-float-left {
display: inline-block;
position: relative;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: transform;
transition-property: transform;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.bubble-float-left:before {
position: absolute;
z-index: -1;
content: '';
top: calc(50% - 10px);
left: 0;
border-style: solid;
border-width: 10px 10px 10px 0;
border-color: transparent #e1e1e1 transparent transparent;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: left;
transition-property: left;
}
.bubble-float-left:hover, .bubble-float-left:focus, .bubble-float-left:active {
-webkit-transform: translateX(5px);
transform: translateX(5px);
}
.bubble-float-left:hover:before, .bubble-float-left:focus:before, .bubble-float-left:active:before {
left: -10px;
}

/* CURLS */
/* Curl Top Left */
.curl-top-left {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.curl-top-left:before {
pointer-events: none;
position: absolute;
content: '';
height: 0;
width: 0;
top: 0;
left: 0;
background: white;
/* IE9 */
background: linear-gradient(135deg, white 45%, #aaaaaa 50%, #cccccc 56%, white 80%);
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#ffffff', endColorstr='#000000');
/*For IE7-8-9*/
z-index: 1000;
box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.4);
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: width, height;
transition-property: width, height;
}
.curl-top-left:hover:before, .curl-top-left:focus:before, .curl-top-left:active:before {
width: 25px;
height: 25px;
}

/* Curl Top Right */
.curl-top-right {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.curl-top-right:before {
pointer-events: none;
position: absolute;
content: '';
height: 0;
width: 0;
top: 0;
right: 0;
background: white;
/* IE9 */
background: linear-gradient(225deg, white 45%, #aaaaaa 50%, #cccccc 56%, white 80%);
box-shadow: -1px 1px 1px rgba(0, 0, 0, 0.4);
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: width, height;
transition-property: width, height;
}
.curl-top-right:hover:before, .curl-top-right:focus:before, .curl-top-right:active:before {
width: 25px;
height: 25px;
}

/* Curl Bottom Right */
.curl-bottom-right {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.curl-bottom-right:before {
pointer-events: none;
position: absolute;
content: '';
height: 0;
width: 0;
bottom: 0;
right: 0;
background: white;
/* IE9 */
background: linear-gradient(315deg, white 45%, #aaaaaa 50%, #cccccc 56%, white 80%);
box-shadow: -1px -1px 1px rgba(0, 0, 0, 0.4);
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: width, height;
transition-property: width, height;
}
.curl-bottom-right:hover:before, .curl-bottom-right:focus:before, .curl-bottom-right:active:before {
width: 25px;
height: 25px;
}

/* Curl Bottom Left */
.curl-bottom-left {
display: inline-block;
position: relative;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
.curl-bottom-left:before {
pointer-events: none;
position: absolute;
content: '';
height: 0;
width: 0;
bottom: 0;
left: 0;
background: white;
/* IE9 */
background: linear-gradient(45deg, white 45%, #aaaaaa 50%, #cccccc 56%, white 80%);
box-shadow: 1px -1px 1px rgba(0, 0, 0, 0.4);
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-property: width, height;
transition-property: width, height;
}
.curl-bottom-left:hover:before, .curl-bottom-left:focus:before, .curl-bottom-left:active:before {
width: 25px;
height: 25px;
}

html代码:

<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1">
<meta http-equiv="Access-Control-Allow-Origin" content="*">
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
<meta name="format-detection" content="telephone=no,email=no,date=no,address=no">
<meta name="keywords" content="">
<meta name="description" content="">
<title>css3Hover</title>

<style type="text/css">
/* demo 样式 */
body {
margin: 0 auto;
max-width: 800px;
padding: 20px;
font-family: sans-serif;
color: #333;
line-height: 140%;
}
img {
border: none;
}
#effects {
margin-top: 5em;
}
h1 {
text-align: center;
font-size: 4em;
}
h2 {
margin-top: 2em;
}
</style>

<link rel="stylesheet" type="text/css" href="css3Hover.css">

<!-- SCRIPT BEGIN -->

<script type="text/javascript" src="http://cdn.bootcss.com/jquery/1.8.3/jquery.min.js"></script>

<!-- SCRIPT END -->

</head>
<body>
<h1> Hover.css </h1>

<div id="effects">

<h2>2D Transforms</h2>

<a href="#" class="button grow">Grow</a>
<a href="#" class="button shrink">Shrink</a>
<a href="#" class="button pulse">Pulse</a>
<a href="#" class="button pulse-grow">Pulse Grow</a>
<a href="#" class="button pulse-shrink">Pulse Shrink</a>
<a href="#" class="button push">Push</a>
<a href="#" class="button pop">Pop</a>
<a href="#" class="button rotate">Rotate</a>
<a href="#" class="button grow-rotate">Grow Rotate</a>
<a href="#" class="button float">Float</a>
<a href="#" class="button sink">Sink</a>
<a href="#" class="button hover">Hover</a>
<a href="#" class="button hang">Hang</a>
<a href="#" class="button skew">Skew</a>
<a href="#" class="button skew-forward">Skew Forward</a>
<a href="#" class="button skew-backward">Skew Backward</a>
<a href="#" class="button wobble-horizontal">Wobble Horizontal</a>
<a href="#" class="button wobble-vertical">Wobble Vertical</a>
<a href="#" class="button wobble-to-bottom-right">Wobble To Bottom Right</a>
<a href="#" class="button wobble-to-top-right">Wobble To Top Right</a>
<a href="#" class="button wobble-top">Wobble Top</a>
<a href="#" class="button wobble-bottom">Wobble Bottom</a>
<a href="#" class="button wobble-skew">Wobble Skew</a>
<a href="#" class="button buzz">Buzz</a>
<a href="#" class="button buzz-out">Buzz Out</a>

<h2>Border Transitions</h2>

<a href="#" class="button border-fade">Border Fade</a>
<a href="#" class="button hollow">Hollow</a>
<a href="#" class="button trim">Trim</a>
<a href="#" class="button outline-outward">Outline Outward</a>
<a href="#" class="button outline-inward">Outline Inward</a>
<a href="#" class="button round-corners">Round Corners</a>

<h2>Shadow and Glow Transitions</h2>

<a href="#" class="button glow">Glow</a>
<a href="#" class="button box-shadow-outset">Box Shadow Outset</a>
<a href="#" class="button box-shadow-inset">Box Shadow Inset</a>
<a href="#" class="button float-shadow">Float Shadow</a>
<a href="#" class="button hover-shadow">Hover Shadow</a>
<a href="#" class="button shadow-radial">Shadow Radial</a>

<h2>Speech Bubbles</h2>

<a href="#" class="button bubble-top">Bubble Top</a>
<a href="#" class="button bubble-right">Bubble Right</a>
<a href="#" class="button bubble-bottom">Bubble Bottom</a>
<a href="#" class="button bubble-left">Bubble Left</a>
<a href="#" class="button bubble-float-top">Bubble Float Top</a>
<a href="#" class="button bubble-float-right">Bubble Float Right</a>
<a href="#" class="button bubble-float-bottom">Bubble Float Bottom</a>
<a href="#" class="button bubble-float-left">Bubble Float Left</a>

<h2>Curls</h2>

<a href="#" class="button curl-top-left">Curl Top Left</a>
<a href="#" class="button curl-top-right">Curl Top Right</a>
<a href="#" class="button curl-bottom-right">Curl Bottom Right</a>
<a href="#" class="button curl-bottom-left">Curl Bottom Left</a>

</div>
</body>
</html>