<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>a {
display: inline-block;
text-decoration: none;
color: #FFF;
font-weight: bold;
text-align: center;
margin: 10px;
width: 160px;
padding: 0.5em 2em;
}
span{
color: #FF3399;
}
.btn{
position: relative;
height: 50px;
line-height: 50px;
background-image: linear-gradient(45deg, #ffafbd 0%, #ffc3a0 100%);
transition: .4s;
padding: 0;
}
.btn:before {
position: absolute;
content: '';
left: 0;
top: 0;
width: 0;
height: 0;
border: none;
border-left: solid 21px white;
border-bottom: solid 51px transparent;
z-index: 1;
transition: .4s;
}
.btn:after {
position: absolute;
content: '';
right: 0;
top: 0;
width: 0;
height: 0;
border: none;
border-left: solid 21px transparent;
border-bottom: solid 51px white;
z-index: 1;
transition: .4s;
}</style>
</head>
<body>
<a class="btn" href="#">お し て <span>♥</span>
</a>
<script>
</script>
</body>
</html>