今天给大家分享一款纯css3实现的win8加载动画。在这款实例中动画效果完全由css3实现。一起看下效果图：

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实现的代码。

html代码：

  <div class="wrapp">
        <div class="text">
            <h1>
                Windows 8</h1>
        </div>
        <div class="logo">
            <span class="top-left"></span><span class="bottom-right"></span>
        </div>
    </div>

css3代码：

body{
	margin: 0;
	padding: 0;
	background-color: #90da15;
}
.wrapp{
	position: absolute;
	top: 50%;
	left: 50%;
	width: 600px;
	height: 300px;
	margin: -150px 0 0 -300px;
	-webkit-perspective: 30px;
	-webkit-transform: translateX(0px);
	-webkit-animation: wrapp 400ms 800ms ease-in forwards;

	-moz-perspective: 30px;
	-moz-transform: translateX(0px);
	-moz-animation: wrapp 400ms 800ms ease-in forwards;

	-ms-perspective: 30px;
	-ms-transform: translateX(0px);
	-ms-animation: wrapp 400ms 800ms ease-in forwards;

	perspective: 30px;
	transform: translateX(0px);
	animation: wrapp 400ms 800ms ease-in forwards;
}
.text{
	position: absolute;
	top: 50%;
	left: 50%;
	width: 0px;
	height: 60px;
	margin: -30px 0 0 -160px;
	overflow: hidden;
	-webkit-transform: translateX(0px);
	-webkit-animation: text 400ms 800ms linear forwards;

	-moz-transform: translateX(0px);
	-moz-animation: text 400ms 800ms linear forwards;

	-ms-transform: translateX(0px);
	-ms-animation: text 400ms 800ms linear forwards;

	transform: translateX(0px);
	animation: text 400ms 800ms linear forwards;
}
h1{
	float: right;
	font-family: "Segoe UI", Frutiger, "Frutiger Linotype", "Dejavu Sans", "Helvetica Neue", Arial, sans-serif;
	font-weight: normal;
	color: #fff;
	padding: 0;
	margin: 0;
	width: 320px;
	height: 60px;
	font-size: 60px;
	line-height: 60px;
}
.logo{
	position: absolute;
	top: 50%;
	left: 50%;
	width: 90px;
	height: 90px;
	margin: -45px 0 0 -45px;
	background-color: #fff;
	-webkit-transform: translateX(0px) rotateY(10deg);
	-webkit-animation: logo 500ms 300ms ease-out forwards;

	-moz-transform: translateX(0px) rotateY(10deg);
	-moz-animation: logo 500ms 300ms ease-out forwards;

	-ms-transform: translateX(0px) rotateY(10deg);
	-ms-animation: logo 500ms 300ms ease-out forwards;

	transform: translateX(0px) rotateY(10deg);
	animation: logo 500ms 300ms ease-out forwards;
}
.logo .top-left{
	position: absolute;
	top: 0;
	left: 0;
	width: 44px;
	height: 44px;
	border-right: solid 2px #90da15;
	border-bottom: solid 2px #90da15;
}
.logo .bottom-right{
	position: absolute;
	bottom: 0;
	right: 0;
	width: 44px;
	height: 44px;
	border-left: solid 2px #90da15;
	border-top: solid 2px #90da15;
}

@-webkit-keyframes logo {
    from {
    	-webkit-transform:  translateX(0px) rotateY(10deg);
    }
    to {
    	-webkit-transform:  translateX(0px) rotateY(-10deg);
    }
}
@-webkit-keyframes text {
    from {
    	width: 0px;
    	-webkit-transform: translateX(0px);
    }
    60%{
    	width: 0px;
    }
    to {
    	width: 320px;
    	-webkit-transform: translateX(240px);
    }
}
@-webkit-keyframes wrapp {
    from {
    	-webkit-transform: translateX(0px);
    }
    to {
    	-webkit-transform: translateX(-200px);
    }
}
@-moz-keyframes logo {
    from {
    	-moz-transform:  translateX(0px) rotateY(10deg);
    }
    to {
    	-moz-transform:  translateX(0px) rotateY(-10deg);
    }
}
@-moz-keyframes text {
    from {
    	width: 0px;
    	-moz-transform: translateX(0px);
    }
    60%{
    	width: 0px;
    }
    to {
    	width: 320px;
    	-moz-transform: translateX(240px);
    }
}
@-moz-keyframes wrapp {
    from {
    	-moz-transform: translateX(0px);
    }
    to {
    	-moz-transform: translateX(-200px);
    }
}

@-ms-keyframes logo {
    from {
    	-ms-transform:  translateX(0px) rotateY(10deg);
    }
    to {
    	-ms-transform:  translateX(0px) rotateY(-10deg);
    }
}
@-ms-keyframes text {
    from {
    	width: 0px;
    	-ms-transform: translateX(0px);
    }
    60%{
    	width: 0px;
    }
    to {
    	width: 320px;
    	-ms-transform: translateX(240px);
    }
}
@-ms-keyframes wrapp {
    from {
    	-ms-transform: translateX(0px);
    }
    to {
    	-ms-transform: translateX(-200px);
    }
}
@keyframes logo {
    from {
    	transform:  translateX(0px) rotateY(10deg);
    }
    to {
    	transform:  translateX(0px) rotateY(-10deg);
    }
}
@keyframes text {
    from {
    	width: 0px;
    	transform: translateX(0px);
    }
    60%{
    	width: 0px;
    }
    to {
    	width: 320px;
    	transform: translateX(240px);
    }
}
@keyframes wrapp {
    from {
    	transform: translateX(0px);
    }
    to {
    	transform: translateX(-200px);
    }
}

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