<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
.container{
width: 400px;
height: 400px;
border: 5px solid #1E90FF;
border-radius: 10px 0 10px 0;
margin: 10px auto;
position: relative;
}
.btn-mask{
text-decoration: none;
position: absolute;
display: block;
line-height: 40px;
left: 50px;
top: 50px;
width: 100px;
height: 40px;
text-align: center;
background-color: #EEEEEE;
color: #333333;
overflow: hidden;
}
.btn-mask:before{
transition: top 0.2s linear;
display: block;
position: absolute;
content: "";
background-color: rgba(0,0,0,0.1);
width: 100%;
height: 100%;
top: -100%;
}
.btn-mask:hover:before{
top: 0;
}
/*第一个蒙层按钮*/
.btn-clip{
width: 94px;
height: 34px;
position: absolute;
left: 50px;
top: 160px;
text-align: center;
text-decoration: none;
line-height: 34px;
}
.btn-clip:before{
content: "";
width: 94px;
height: 34px;
position: absolute;
left: 0px;
top: 0px;
margin-left: -3px;
margin-top: -3px;
border: 3px solid #FF0000;
box-sizing: border-box;
animation: clip_rotate 1.5s linear infinite;
}
@keyframes clip_rotate{
0%,100%{clip: rect(0,100px,3px,0);}
25%{clip: rect(0,100px,40px,97px);}
50%{clip: rect(37px,100px,40px,0);}
75%{clip: rect(0,3px,40px,0);}
}
</style>
</head>
<body>
<div class="container">
<a href="#" class="btn-mask">发射</a><!--蒙层按钮-->
<a href="#" class="btn-clip">旋转</a><!--clip动画按钮-->
</div>
</body>
</html>
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