代码编辑器：
x
1
2
<meta charset="utf-8">3
<link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> 4
<style>5
img.normal6
{7
height:auto;8
}9
img.big10
{11
height:120px;12
}13
p.ex14
{15
height:100px;16
width:100px;17
}18
</style>