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: 0;
left: 0;
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: 0;
z-index: 0;
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: 1;
z-index: 99;
}
.is-loading .loader {
filter: progid:DXImageTransform.Microsoft.Alpha(enabled=false);
opacity: 1;
}
Js
window.onload=function(){
$('body').removeClass('is-loading');
}