请问高手，我用西面的代码控制三个div在一排，请问我可以把这代码放到css里面吗？如果可以的话，我该怎么放呢？
<style>div{float:left;}</style>
<div style="width:200;height:100;background-color:red;"></div>
<div style="width:200;height:150;background-color:green;"></div>
<div style="width:200;height:200;background-color:blue;"></div>
可以这样做，代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns=" http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="author" content="ZiTer72,QQ:751510550" /> <title>无标题文档</title> <style> * { margin:0; padding:0; } div { float:left; width:200px; } .div { height:100px; caption-side:#f00; } .div2 { height:150px; background:#0f0; } .div3 { height:200px; background:#00f; } </style> </head> <body> <div class="div1"></div> <div class="div2"></div> <div class="div3"></div> </body> </html>
补充下，颜色最好采用十六位进制。建立一个main.css文件
div
{
float:left;
}
.div1
{
width:200;height:100;background-color:red;
}
.div2
{
width:200;height:150;background-color:green;}
.div3
{
width:200;height:200;background-color:blue;
}
<head></head>标记里面写上下面这句话
<link href="../images/main.css" rel="stylesheet" type="text/css" />
你可以像下面这么写
<div class="div1"></div>
<div class="div2"></div>
<div class="div3"></div>
li
当然可以，你可以改成这样
<style>
.div_1{float:left;width:200px;height:100px;background-color:red;}
.div_2{float:left;width:200px;height:150px;background-color:green;}
.div_3{float:left;width:200px;height:200px;background-color:blue;}
</style>
<div class="div_1">1</div>
<div class="div_2">2</div>
<div class="div_3">3</div>