<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<title>CSS3 loading特效</title>
<meta name="keywords" content=" CSS3 loading特效" />
<link rel="stylesheet" href="css/normalize.css">
<style>
* {
box-sizing: border-box;
overflow: hidden;
}
body {
padding-top: 10em;
text-align: center;
}
.loader {
position: relative;
margin: auto;
width: 350px;
color: white;
font-family: "Roboto Condensed", sans-serif;
font-size: 250%;
background: linear-gradient(180deg, #222 0, #444 100%);
box-shadow: inset 0 5px 20px black;
text-shadow: 5px 5px 5px rgba(0,0,0,0.3);
}
.loader:after {
content: "";
display: table;
clear: both;
}
span {
float: left;
height: 100px;
line-height: 120px;
width: 50px;
}
.loader > span {
border-left: 1px solid #444;
border-right: 1px solid #222;
}
.covers {
position: absolute;
height: 100%;
width: 100%;
}
.covers span {
background: linear-gradient(180deg, white 0, #ddd 100%);
animation: up 2s infinite;
}
@keyframes up {
0% { margin-bottom: 0; }
16% { margin-bottom: 100%; height: 20px; }
50% { margin-bottom: 0; }
100% { margin-bottom: 0; }
}
.covers span:nth-child(2) { animation-delay: .142857s; }
.covers span:nth-child(3) { animation-delay: .285714s; }
.covers span:nth-child(4) { animation-delay: .428571s; }
.covers span:nth-child(5) { animation-delay: .571428s; }
.covers span:nth-child(6) { animation-delay: .714285s; }
.covers span:nth-child(7) { animation-delay: .857142s; }
</style>
<script src="js/prefixfree.min.js"></script>
</head>
<body>
<div class="loader">
<span>L</span>
<span>O</span>
<span>A</span>
<span>D</span>
<span>I</span>
<span>N</span>
<span>G</span>
<div class="covers">
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
</div>
</div>
<div style="width: 100%; height: 50px; line-height: 50px; text-align: center;">
</div>
</body>
</html>
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