复制到/body前

<!-- 刷新加载动画 -->
<script>
    $(function(){ $("#PageLoading").fadeOut(530); });  
</script>

引入css

#PageLoading {
    background-color:#fff;
    height:100%;
    width:100%;
    position:fixed;
    z-index:1;
    margin-top:0px;
    top:0px;
}
#PageLoading-center {
    width:100%;
    height:100%;
    position:relative;
}
#PageLoading-center-absolute {
    position:absolute;
    left:50%;
    top:50%;
    height:200px;
    width:200px;
    margin-top:-100px;
    margin-left:-100px;
}
.object {
    -moz-border-radius:50% 50% 50% 50%;
    -webkit-border-radius:50% 50% 50% 50%;
    border-radius:50% 50% 50% 50%;
    position:absolute;
    border-left:5px solid #87CEFA;
    border-right:5px solid #FFC0CB;
    border-top:5px solid transparent;
    border-bottom:5px solid transparent;
    -webkit-animation:animate 2.5s infinite;
    animation:animate 2.5s infinite;
}
#object_one {
    left:75px;
    top:75px;
    width:50px;
    height:50px;
}
#object_two {
    left:65px;
    top:65px;
    width:70px;
    height:70px;
    -webkit-animation-delay:0.1s;
    animation-delay:0.1s;
}
#object_three {
    left:55px;
    top:55px;
    width:90px;
    height:90px;
    -webkit-animation-delay:0.2s;
    animation-delay:0.2s;
}
#object_four {
    left:45px;
    top:45px;
    width:110px;
    height:110px;
    -webkit-animation-delay:0.3s;
    animation-delay:0.3s;
}
@-webkit-keyframes animate {
    50% {
    -ms-transform:rotate(180deg);
    -webkit-transform:rotate(180deg);
    transform:rotate(180deg);
}
100% {
    -ms-transform:rotate(0deg);
    -webkit-transform:rotate(0deg);
    transform:rotate(0deg);
}
}@keyframes animate {
    50% {
    -ms-transform:rotate(180deg);
    -webkit-transform:rotate(180deg);
    transform:rotate(180deg);
}
100% {
    -ms-transform:rotate(0deg);
    -webkit-transform:rotate(0deg);
    transform:rotate(0deg);
}
}