underline
overline
line-through
blink
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html lang="ja">
<head>
<META http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
<META http-equiv="Content-Style-Type" content="text/css">
<title>下線、上線、取り消し線を引く</title>
<style type="text/css">
<!--
p span { font: 2em Verdana; color: red; }
span.s1 { text-decoration: underline; }
span.s2 { text-decoration: overline; }
span.s3 { text-decoration: line-through; }
span.s4 { text-decoration: blink; }
-->
</style>
</head>
<body>
<p><span class="s1">underline</span></p>
<p><span class="s2">overline</span></p>
<p><span class="s3">line-through</span></p>
<p><span class="s4">blink</span></p>
</body>
</html>