<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<style>
h1,h2,h3,p{
font-family: "楷体";
text-decoration: overline;
}
#id1,.one{
color: red;
font-weight: bold;
}
#id2{
font-size: 23px;
color: blue;
font-weight: bold;
font-style: italic;
text-decoration: underline;
}
</style>
</head>
<body>
<h1 id="id1">老大</h1>
<h2>老二</h2>
<h3 class="one">老三</h3>
<p>老四</p>
<p>老五</p>
<div id="id2">老五告诉老四老三的老二老大了</div>
</body>
</html>