页面加载完之前显示Loading

1.第一种方式

HTML

<body  class="is-loading">
<div class="curtain">
<div class="loader">
loading...
</div>
</div>
<div>
<!--这里 正文 -->
</div>
</body>

CSS

.loader {
position: fixed;
left: 50%;
top: 50%;
margin: -0.2em 0 0 -0.2em;
text-indent: -9999em;
border-top: 0.3em solid rgba(0, 0, 0, 0.1);
border-right: 0.3em solid rgba(0, 0, 0, 0.1);
border-bottom: 0.3em solid rgba(0, 0, 0, 0.1);
border-left: 0.3em solid #555;
-moz-transform: translateZ(0);
-webkit-transform: translateZ(0);
transform: translateZ(0);
-moz-animation: loader 300ms infinite linear;
-webkit-animation: loader 300ms infinite linear;
animation: loader 300ms infinite linear;
-moz-transition: all 500ms ease;
-o-transition: all 500ms ease;
-webkit-transition: all 500ms ease;
transition: all 500ms ease;
} .loader,
.loader:after {
border-radius: 50%;
width: 2em;
height: 2em;
} .curtain {
position: fixed;
width: 100%;
height: 100%;
top:;
left:;
background-color: white;
-moz-transition: all 600ms ease;
-o-transition: all 600ms ease;
-webkit-transition: all 600ms ease;
transition: all 600ms ease;
filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
opacity:;
z-index:;
overflow: hidden;
} @-webkit-keyframes loader {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
} @-moz-keyframes loader {
0% {
-moz-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-moz-transform: rotate(360deg);
transform: rotate(360deg);
}
} @keyframes loader {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
} .is-loading {
overflow: hidden;
} .is-loading .curtain {
filter: progid:DXImageTransform.Microsoft.Alpha(enabled=false);
opacity:;
z-index:;
} .is-loading .loader {
filter: progid:DXImageTransform.Microsoft.Alpha(enabled=false);
opacity:;
}

JS

 window.onload=function(){

     $('body').removeClass('is-loading');
}

2.第二种方式

HTML

<div id="loading">
<i></i>
</div>

CSS

#loading{
width: 100%;
height: 100%;
background-color: #fff;
position: fixed;
top:;
left:;
z-index:;
}
#loading >i{
width: 64px;
height: 64px;
position: absolute;
top:;
bottom:;
left:;
right:;
margin: auto;
background: url("/images/loading.gif") no-repeat;
}

JS

document.onreadystatechange = function () {
if(document.readyState === "complete"){
$("#loading").fadeOut();
}
}

Loading图标网站:https://icons8.com/preloaders/

3.第三种方式

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>css3超炫loading加载特效</title>
<style>
.load1 {
margin: 100px auto;
width: 50px;
height: 60px;
text-align: center;
font-size: 10px;
}
.load1 > div {
background-color: #67CF22;
height: 100%;
width: 6px;
display: inline-block;
-webkit-animation: stretchdelay 1.2s infinite ease-in-out;
animation: stretchdelay 1.2s infinite ease-in-out;
}
.load1 .rect2 {
-webkit-animation-delay: -1.1s;
animation-delay: -1.1s;
}
.load1 .rect3 {
-webkit-animation-delay: -1.0s;
animation-delay: -1.0s;
}
.load1 .rect4 {
-webkit-animation-delay: -0.9s;
animation-delay: -0.9s;
}
.load1 .rect5 {
-webkit-animation-delay: -0.8s;
animation-delay: -0.8s;
}
@-webkit-keyframes stretchdelay {
0%, 40%, 100% { -webkit-transform: scaleY(0.4) }
20% { -webkit-transform: scaleY(1.0) }
}
@keyframes stretchdelay {
0%, 40%, 100% {
transform: scaleY(0.4);
-webkit-transform: scaleY(0.4);
} 20% {
transform: scaleY(1.0);
-webkit-transform: scaleY(1.0);
}
}
.load2 {
width: 60px;
height: 60px;
background-color: #67CF22;
margin: 100px auto;
-webkit-animation: rotateplane 1.2s infinite ease-in-out;
animation: rotateplane 1.2s infinite ease-in-out;
}
@-webkit-keyframes rotateplane {
0% { -webkit-transform: perspective(120px) }
50% { -webkit-transform: perspective(120px) rotateY(180deg) }
100% { -webkit-transform: perspective(120px) rotateY(180deg) rotateX(180deg) }
}
@keyframes rotateplane {
0% {
transform: perspective(120px) rotateX(0deg) rotateY(0deg);
-webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg)
} 50% {
transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
-webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg)
} 100% {
transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
-webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
}
}
.load3 {
width: 60px;
height: 60px;
position: relative;
margin: 100px auto;
}
.double-bounce1, .double-bounce2 {
width: 100%;
height: 100%;
border-radius: 50%;
background-color: #67CF22;
opacity: 0.6;
position: absolute;
top: 0;
left: 0; -webkit-animation: bounce 2.0s infinite ease-in-out;
animation: bounce 2.0s infinite ease-in-out;
}
.double-bounce2 {
-webkit-animation-delay: -1.0s;
animation-delay: -1.0s;
}
@-webkit-keyframes bounce {
0%, 100% { -webkit-transform: scale(0.0) }
50% { -webkit-transform: scale(1.0) }
}
@keyframes bounce {
0%, 100% {
transform: scale(0.0);
-webkit-transform: scale(0.0);
} 50% {
transform: scale(1.0);
-webkit-transform: scale(1.0);
}
}
.load4 {
margin: 100px auto;
width: 32px;
height: 32px;
position: relative;
}
.cube1, .cube2 {
background-color: #67CF22;
width: 30px;
height: 30px;
position: absolute;
top: 0;
left: 0;
-webkit-animation: cubemove 1.8s infinite ease-in-out;
animation: cubemove 1.8s infinite ease-in-out;
}
.cube2 {
-webkit-animation-delay: -0.9s;
animation-delay: -0.9s;
}
@-webkit-keyframes cubemove {
25% { -webkit-transform: translateX(42px) rotate(-90deg) scale(0.5) }
50% { -webkit-transform: translateX(42px) translateY(42px) rotate(-180deg) }
75% { -webkit-transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5) }
100% { -webkit-transform: rotate(-360deg) }
}
@keyframes cubemove {
25% {
transform: translateX(42px) rotate(-90deg) scale(0.5);
-webkit-transform: translateX(42px) rotate(-90deg) scale(0.5);
} 50% {
transform: translateX(42px) translateY(42px) rotate(-179deg);
-webkit-transform: translateX(42px) translateY(42px) rotate(-179deg);
} 50.1% {
transform: translateX(42px) translateY(42px) rotate(-180deg);
-webkit-transform: translateX(42px) translateY(42px) rotate(-180deg);
} 75% {
transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5);
-webkit-transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5);
} 100% {
transform: rotate(-360deg);
-webkit-transform: rotate(-360deg);
}
}
.load5 {
margin: 100px auto;
width: 90px;
height: 90px;
position: relative;
text-align: center;
-webkit-animation: rotate 2.0s infinite linear;
animation: rotate 2.0s infinite linear;
}
.dot1, .dot2 {
width: 60%;
height: 60%;
display: inline-block;
position: absolute;
top: 0;
background-color: #67CF22;
border-radius: 100%;
-webkit-animation: bounce 2.0s infinite ease-in-out;
animation: bounce 2.0s infinite ease-in-out;
}
.dot2 {
top: auto;
bottom: 0px;
-webkit-animation-delay: -1.0s;
animation-delay: -1.0s;
}
@-webkit-keyframes rotate { 100% { -webkit-transform: rotate(360deg) }}
@keyframes rotate { 100% { transform: rotate(360deg); -webkit-transform: rotate(360deg) }}
@-webkit-keyframes bounce {
0%, 100% { -webkit-transform: scale(0.0) }
50% { -webkit-transform: scale(1.0) }
}
@keyframes bounce {
0%, 100% {
transform: scale(0.0);
-webkit-transform: scale(0.0);
} 50% {
transform: scale(1.0);
-webkit-transform: scale(1.0);
}
}
.load6 {
margin: 100px auto 0;
width: 150px;
text-align: center;
}
.load6 > div {
width: 30px;
height: 30px;
background-color: #67CF22;
border-radius: 100%;
display: inline-block;
-webkit-animation: bouncedelay 1.4s infinite ease-in-out;
animation: bouncedelay 1.4s infinite ease-in-out;
-webkit-animation-fill-mode: both;
animation-fill-mode: both;
}
.load6 .bounce1 {
-webkit-animation-delay: -0.32s;
animation-delay: -0.32s;
}
.load6 .bounce2 {
-webkit-animation-delay: -0.16s;
animation-delay: -0.16s;
}
@-webkit-keyframes bouncedelay {
0%, 80%, 100% { -webkit-transform: scale(0.0) }
40% { -webkit-transform: scale(1.0) }
}
@keyframes bouncedelay {
0%, 80%, 100% {
transform: scale(0.0);
-webkit-transform: scale(0.0);
} 40% {
transform: scale(1.0);
-webkit-transform: scale(1.0);
}
}
.load7 {
width: 40px;
height: 40px;
margin: 100px auto;
background-color: #333;
border-radius: 100%;
-webkit-animation: scaleout 1.0s infinite ease-in-out;
animation: scaleout 1.0s infinite ease-in-out;
}
@-webkit-keyframes scaleout {
0% { -webkit-transform: scale(0.0) }
100% {
-webkit-transform: scale(1.0);
opacity: 0;
}
}
@keyframes scaleout {
0% {
transform: scale(0.0);
-webkit-transform: scale(0.0);
} 100% {
transform: scale(1.0);
-webkit-transform: scale(1.0);
opacity: 0;
}
}
.load8 {
margin: 100px auto;
width: 20px;
height: 20px;
position: relative;
}
.container1 > div, .container2 > div, .container3 > div {
width: 6px;
height: 6px;
background-color: #333;
border-radius: 100%;
position: absolute;
-webkit-animation: bouncedelay 1.2s infinite ease-in-out;
animation: bouncedelay 1.2s infinite ease-in-out;
-webkit-animation-fill-mode: both;
animation-fill-mode: both;
}
.load8 .load8-container {
position: absolute;
width: 100%;
height: 100%;
}
.container2 {
-webkit-transform: rotateZ(45deg);
transform: rotateZ(45deg);
}
.container3 {
-webkit-transform: rotateZ(90deg);
transform: rotateZ(90deg);
}
.circle1 { top: 0; left: 0; }
.circle2 { top: 0; right: 0; }
.circle3 { right: 0; bottom: 0; }
.circle4 { left: 0; bottom: 0; }
.container2 .circle1 {
-webkit-animation-delay: -1.1s;
animation-delay: -1.1s;
}
.container3 .circle1 {
-webkit-animation-delay: -1.0s;
animation-delay: -1.0s;
}
.container1 .circle2 {
-webkit-animation-delay: -0.9s;
animation-delay: -0.9s;
}
.container2 .circle2 {
-webkit-animation-delay: -0.8s;
animation-delay: -0.8s;
}
.container3 .circle2 {
-webkit-animation-delay: -0.7s;
animation-delay: -0.7s;
}
.container1 .circle3 {
-webkit-animation-delay: -0.6s;
animation-delay: -0.6s;
}
.container2 .circle3 {
-webkit-animation-delay: -0.5s;
animation-delay: -0.5s;
}
.container3 .circle3 {
-webkit-animation-delay: -0.4s;
animation-delay: -0.4s;
}
.container1 .circle4 {
-webkit-animation-delay: -0.3s;
animation-delay: -0.3s;
}
.container2 .circle4 {
-webkit-animation-delay: -0.2s;
animation-delay: -0.2s;
}
.container3 .circle4 {
-webkit-animation-delay: -0.1s;
animation-delay: -0.1s;
}
@-webkit-keyframes bouncedelay {
0%, 80%, 100% { -webkit-transform: scale(0.0) }
40% { -webkit-transform: scale(1.0) }
}
@keyframes bouncedelay {
0%, 80%, 100% {
transform: scale(0.0);
-webkit-transform: scale(0.0);
} 40% {
transform: scale(1.0);
-webkit-transform: scale(1.0);
}
}
</style>
</head>
<body>
<div class="load1">
<div class="rect1"></div>
<div class="rect2"></div>
<div class="rect3"></div>
<div class="rect4"></div>
<div class="rect5"></div>
</div>
<div class="load2"></div>
<div class="load3">
<div class="double-bounce1"></div>
<div class="double-bounce2"></div>
</div>
<div class="load4">
<div class="cube1"></div>
<div class="cube2"></div>
</div>
<div class="load5">
<div class="dot1"></div>
<div class="dot2"></div>
</div>
<div class="load6">
<div class="bounce1"></div>
<div class="bounce2"></div>
<div class="bounce3"></div>
</div>
<div class="load7"></div>
<div class="load8">
<div class="load8-container container1">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
<div class="load8-container container2">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
<div class="load8-container container3">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
</div>
</body>
</html>

其他待更新!

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