核心:我不说之前说过的话,+nth代表从1开始,是奇数还是偶数哈
```css
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
.test1 p:first-of-type
{
color: red;
}
.test1 p:nth-of-type(1)
{
color: blue;
}
.test1 p:last-of-type
{
color: yellow;
}
.test1 p:nth-last-of-type(1)
{
font-size: 10px;
}
</style>
</head>
<body>
<div class="test1">
<h1>1111</h1>
<h2>333</h2>
<p>444</p>
<p>555</p>
<h3>66666</h3>
<h3>777770</h3>
<p>8888</p>
<h3>6666</h3>
</div>7
</body>
</html>