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用于加载页面前显示的Loading动画纯CSS3方块翻转效果演示

网页加载时如果有很多js与css会引起网页卡钝现象，用个loading效果等网页内容加载完后再显示，体验会好很多
背景色可更换

代码正文双击正文可选择全部

1[代码][html]

<html> 
<head>
<meta charset="UTF-8">
<title>纯CSS3方块翻转效果的Loading加载动画DEMO演示</title>
<style>
body,html{width:100%;height:100%;}
body{margin:0;}
.je_loader_mask,.je_loader{position:absolute;top:0;left:0;height:100%;width:100%;z-index:10;background-color:#403833;}
.je_loader{z-index:11}
.je_loader .je_main{position:absolute;top:50%;left:50%;width:172px;height:128px;margin:0;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%)}
@media (max-width:550px){.je_loader{-webkit-transform:scale(0.75);transform:scale(0.75)}}
@media (max-width:440px){.je_loader{-webkit-transform:scale(0.5);transform:scale(0.5)}}
.je_square{position:relative}
.je_square:nth-child(1){margin-left:0px}
.je_square:nth-child(2){margin-left:44px}
.je_square:nth-child(3){margin-left:88px}
.je_square:nth-child(4){margin-left:132px}
.je_square span{position:absolute;top:0px;left:20px;height:36px;width:36px;border-radius:2px;background-color:#FFFFFF}
.je_square span:nth-child(1){top:0px}
.je_square span:nth-child(2){top:44px}
.je_square span:nth-child(3){top:88px}
.je_square:nth-child(1) span{-webkit-animation:animsquare1 2s infinite ease-in;animation:animsquare1 2s infinite ease-in}
.je_square:nth-child(2) span{-webkit-animation:animsquare2 2s infinite ease-in;animation:animsquare2 2s infinite ease-in}
.je_square:nth-child(3) span{-webkit-animation:animsquare3 2s infinite ease-in;animation:animsquare3 2s infinite ease-in}
.je_square:nth-child(4) span{-webkit-animation:animsquare4 2s infinite ease-in;animation:animsquare4 2s infinite ease-in}
.je_square span:nth-child(1){-webkit-animation-delay:0.00s;animation-delay:0.00s}
.je_square span:nth-child(2){-webkit-animation-delay:0.15s;animation-delay:0.15s}
.je_square span:nth-child(3){-webkit-animation-delay:0.30s;animation-delay:0.30s}
@-webkit-keyframes animsquare1{0%,5%,95%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}30%,70%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@keyframes animsquare1{0%,5%,95%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}30%,70%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@-webkit-keyframes animsquare2{0%,10%,90%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}35%,65%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@keyframes animsquare2{0%,10%,90%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}35%,65%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@-webkit-keyframes animsquare3{0%,15%,85%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}40%,60%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@keyframes animsquare3{0%,15%,85%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}40%,60%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@-webkit-keyframes animsquare4{0%,20%,80%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}45%,55%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@keyframes animsquare4{0%,20%,80%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}45%,55%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
</style>
</head>  
<body>
<div class="je_loader_mask"></div>
<div class="je_loader">
	<div class="je_main">
		<div class="je_square">
			<span></span>
			<span></span>
			<span></span>
		</div>
		<div class="je_square">
			<span></span>
			<span></span>
			<span></span>
		</div>
		<div class="je_square">
			<span></span>
			<span></span>
			<span></span>
		</div>
		<div class="je_square">
			<span></span>
			<span></span>
			<span></span>
		</div>
	</div>
</div>
</body>
</html>