<!DOCTYPE html>
<html>
<head>
<style>
.fansButton {
width:87px;
height:26px;
background:rgba(229,38,25,1);
border-radius:13px;
display: flex;
align-items: center;
justify-content: center;
color: #fff;
transition: all .5s;
}
.fansButton:hover{
background: #fff;
color: #999;
border:1px solid rgba(215,215,215,1);
}
</style>
<body>
<div class='fansButton'>
<span>关注</span>
</div>
</body>
</html>