<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, user-scalable=no" />
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<title></title>
<meta content="" name="Keywords">
<meta content="" name="Description">
<meta name="format-detection" content="telephone=no">
<style>
*{
margin:0;
padding:0;
}
ul,li{
list-style:none;
}
ul{
width:300px;
margin:20px auto;
}
li{
height:20px;
line-height:20px;
margin-bottom:16px;
width:100px;
}
:after, :before {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
a:hover {
border: 1px solid #367dff;
color: #1769ff;
text-decoration: none;
}
a {
border: 1px solid #EDEDED;
display: block;
-webkit-transition: all 0.6s ease-in;
-moz-transition: all 0.6s ease-in;
-ms-transition: all 0.6s ease-in;
-o-transition: all 0.6s ease-in;
transition: all 0.6s ease-in;
color: #ccc;
text-decoration: none;
position: relative;
height: 100%;
}
a:after, a:before {
content: '';
display: block;
position: absolute;
width: 0;
height: 0;
box-sizing: border-box;
border: 1px solid transparent;
}
a:after {
top: 0;
left: 0;
-webkit-transition: border-color 0s ease-in 0.8s,width 0.2s ease-in 0.6s,height 0.2s ease-in 0.4s;
transition: border-color 0s ease-in 0.8s,width 0.2s ease-in 0.6s,height 0.2s ease-in 0.4s;
}
a:before {
bottom: 0;
right: 0;
-webkit-transition: border-color 0s ease-in 0.4s,width 0.2s ease-in 0.2s,height 0.2s ease-in;
transition: border-color 0s ease-in 0.4s,width 0.2s ease-in 0.2s,height 0.2s ease-in;
}
a:hover:after, a:hover:before {
width: 100%;
height: 100%;
}
a:hover:before {
border-bottom-color: #367dff;
border-left-color: #367dff;
-webkit-transition: border-color 0s ease-out 0.4s,width 0.2s ease-out 0.4s,height 0.2s ease-out 0.6s;
transition: border-color 0s ease-out 0.4s,width 0.2s ease-out 0.4s,height 0.2s ease-out 0.6s;
}
a:hover:after {
border-top-color: #367dff;
border-right-color: #367dff;
-webkit-transition: width 0.2s ease-out,height 0.2s ease-out 0.2s;
transition: width 0.2s ease-out,height 0.2s ease-out 0.2s;
}
</style>
</head>
<body>
<ul>
<li>
<a href="javascript:void (0);">列表1</a>
</li>
<li>
<a href="javascript:void (0);">列表1</a>
</li>
<li>
<a href="javascript:void (0);">列表1</a>
</li>
</ul>
</body>
</html>
