页面加载动画实现方法（转）

html:

<!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=utf-8" />
<title>页面初加载的动画</title>
   <script src="jquery-1.11.3.min.js"></script>
    <style>
 .chromeframe {
    margin: 0.2em 0;
    background: #ccc;
    color: #000;
    padding: 0.2em 0;}
#loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index:999999;}
#loader {
    display: block;
    position: relative;
    left: 50%;
    top: 50%;
    width: 150px;
    height: 150px;
    margin: -75px 0 0 -75px;
    border-radius: 50%;
    border: 3px solid transparent;
    /* COLOR 1 */
    border-top-color: #FFF;
    -webkit-animation: spin 2s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    -ms-animation: spin 2s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    -moz-animation: spin 2s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    -o-animation: spin 2s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
        animation: spin 2s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
    z-index:1001;}
#loader:before {
        content: "";
        position: absolute;
        top: 5px;
        left: 5px;
        right: 5px;
        bottom: 5px;
        border-radius: 50%;
        border: 3px solid transparent;
        /* COLOR 2 */
        border-top-color: #FFF;
        -webkit-animation: spin 3s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
        -moz-animation: spin 3s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
        -o-animation: spin 3s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
        -ms-animation: spin 3s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
        animation: spin 3s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */}
#loader:after {
        content: "";
        position: absolute;
        top: 15px;
        left: 15px;
        right: 15px;
        bottom: 15px;
        border-radius: 50%;
        border: 3px solid transparent;
        border-top-color: #FFF;
        /* COLOR 3 */
        -moz-animation: spin 1.5s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
        -o-animation: spin 1.5s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
        -ms-animation: spin 1.5s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
        -webkit-animation: spin 1.5s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
          animation: spin 1.5s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */}

@-webkit-keyframes spin {
        0%{
            -webkit-transform: rotate(0deg);  /* Chrome, Opera 15+, Safari 3.1+ */
            -ms-transform: rotate(0deg);  /* IE 9 */
            transform: rotate(0deg);  /* Firefox 16+, IE 10+, Opera */
        }100%{
            -webkit-transform: rotate(360deg);  /* Chrome, Opera 15+, Safari 3.1+ */
            -ms-transform: rotate(360deg);  /* IE 9 */
            transform: rotate(360deg);  /* Firefox 16+, IE 10+, Opera */}
}

@keyframes spin {
        0%{
            -webkit-transform: rotate(0deg);  /* Chrome, Opera 15+, Safari 3.1+ */
            -ms-transform: rotate(0deg);  /* IE 9 */
            transform: rotate(0deg);  /* Firefox 16+, IE 10+, Opera */
        }100%{
            -webkit-transform: rotate(360deg);  /* Chrome, Opera 15+, Safari 3.1+ */
            -ms-transform: rotate(360deg);  /* IE 9 */
            transform: rotate(360deg);  /* Firefox 16+, IE 10+, Opera */}
}

#loader-wrapper .loader-section {
        position: fixed;
        top: 0;
        width: 51%;
        height: 100%;
        background-color:royalblue; /* 背景颜色 */
        z-index: 1000;
        -webkit-transform: translateX(0);  /* Chrome, Opera 15+, Safari 3.1+ */
        -ms-transform: translateX(0);  /* IE 9 */
        transform: translateX(0);  /* Firefox 16+, IE 10+, Opera */}
#loader-wrapper .loader-section.section-left {left: 0;}
#loader-wrapper .loader-section.section-right {right: 0;}

/* Loaded */
.loaded #loader-wrapper .loader-section.section-left {
        -webkit-transform: translateX(-100%);  /* Chrome, Opera 15+, Safari 3.1+ */
            -ms-transform: translateX(-100%);  /* IE 9 */
                transform: translateX(-100%);  /* Firefox 16+, IE 10+, Opera */
        -webkit-transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);
                transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);}
.loaded #loader-wrapper .loader-section.section-right {
        -webkit-transform: translateX(100%);  /* Chrome, Opera 15+, Safari 3.1+ */
            -ms-transform: translateX(100%);  /* IE 9 */
                transform: translateX(100%);  /* Firefox 16+, IE 10+, Opera */
        -webkit-transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);
        transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);}
.loaded #loader {
        opacity: 0;
        -webkit-transition: all 0.3s ease-out;
                transition: all 0.3s ease-out;}
.loaded #loader-wrapper {
        visibility: hidden;
        -webkit-transform: translateY(-100%);  /* Chrome, Opera 15+, Safari 3.1+ */
            -ms-transform: translateY(-100%);  /* IE 9 */
                transform: translateY(-100%);  /* Firefox 16+, IE 10+, Opera */
        -webkit-transition: all 0.3s 1s ease-out;
                transition: all 0.3s 1s ease-out;}
/* JavaScript Turned Off */
.no-js #loader-wrapper {display: none;}
.no-js h1 {color: #222222;}
#loader-wrapper .load_title {
    font-family:‘Open Sans‘;
    color:#FFF; font-size:19px; width:100%; text-align:center; z-index:9999999999999; position:absolute; top:60%; opacity:1; line-height:30px; }
#loader-wrapper .load_title span {  font-weight:normal; font-style:italic; font-size:13px; color:#FFF; opacity:0.5;}
 </style>
</head>
    <body>
<!--页面加载start-->

<script type="text/javascript">
    // 等待所有加载
    $(window).load(function(){
        $(‘body‘).addClass(‘loaded‘);
        $(‘#loader-wrapper .load_title‘).remove();
    });
</script>    

<div id="loader-wrapper">
    <div id="loader"></div>
    <div class="loader-section section-left"></div>
    <div class="loader-section section-right"></div>
    <div class="load_title">正在加载LoveFeel站点<br><span>V1.0</span></div>
</div>
<!--页面加载end-->
    </body>
</html>

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