<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>h2{
width: 300px;
height: 50px;
line-height: 50px;
padding: 0.5em;
margin: 10px;
color: #494949;
}
.midashi {
position: relative;
background-color: #e6f;
}
.midashi span {
display: block;
padding: .75em 1em;
border: 1px dashed #FFF;
}
.midashi:before,
.midashi:after {
content: '';
position: absolute;
border-style: solid;
border-color: transparent;
}
.midashi:before {
top: 100%;
left: 0;
border-width: 0 15px 15px 0;
border-right-color: #fcf;
}
.midashi:after {
top: -15px;
right: 0;
border-style: solid;
border-width: 0 15px 15px 0;
border-bottom-color: #fcf;
}</style>
</head>
<body>
<h2 class="midashi">リボン風の見出し</h2>
<script>
</script>
</body>
</html>