会动的边框
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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>Call to action</title>
<style type="text/css">
@font-face {
font-family: "open";
font-style: normal;
font-weight: 300;
src: local("Open Sans Light"), local("OpenSans-Light"), url(https://themes.googleusercontent.com/static/fonts/opensans/v6/DXI1ORHCpsQm3Vp6mXoaTZ1r3JsPcQLi8jytr04NNhU.woff) format(‘woff‘);
}
*, *:before, *:after {
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
html, body {
padding: 0;
margin: 0;
width: 100%;
height: 100%;
}
a {
display: block;
margin: auto;
margin-top: 50px;
text-decoration: none;
color: inherit;
}
@keyframes linear {
from {
background-position: 0 0;
}
to {
background-position: 200px 0;
}
}
@keyframes radial {
from {
background-position: 0 0;
}
to {
background-position: 0 60px;
}
}
@keyframes repeating {
from {
background-position: 0 0;
}
to {
background-position: 0 85px;
}
}
@keyframes electronic {
0%, 100% {
background-position: 20px -30px;
}
25% {
background-position: 150px 5px;
}
50% {
background-position: 20px 40px;
}
75% {
background-position: -100px 5px;
}
}
.biliboard {
width: 200px;
padding: 20px;
text-align: center;
position: relative;
background: #fff;
color: #333;
font: 13px open, tahoma;
}
.biliboard:before {
content: ‘‘;
display: block;
height: 100%;
width: 100%;
border-radius: 3px;
transform: scale( 1.02, 1.08 );
position: absolute;
background: #f00;
background: linear-gradient( 90deg, #fafafa, #fafafa, #1D8EF7, #fafafa, #fafafa );
background-position: 55px 0;
top: 0;
animation: linear 1s infinite linear;
left: 0;
z-index: -1;
}
.biliboard.radial:before {
background: radial-gradient( #fafafa, #fafafa, #F2A61A, #fafafa, #fafafa );
animation: radial 1s infinite linear;
}
.biliboard.repeating:before {
background: repeating-linear-gradient( -45deg, #fafafa, #fafafa 30px, #5FC914 30px, #5FC914 60px ) fixed;
animation: repeating 1s infinite linear;
}
.biliboard.electronic:before {
background: radial-gradient( #EA238D, #EA238D, #EA238D, #EA238D, #fafafa, #fafafa ) no-repeat;
background-size: 150px 50px;
animation: electronic 2s infinite linear;
}
</style>
</head>
<body>
<a href="#" class="biliboard electronic">Get your free ebook</a>
<a href="#" class="biliboard repeating">30% Off</a>
<a href="#" class="biliboard">Click NOW!</a>
<a href="#" class="biliboard radial">14-days Free trial</a>
</body>
<!-- <script src="http://cdn.bootcss.com/jquery/1.11.0/jquery.min.js"></script> -->
</html>
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