老师帮忙看下有没什么需要改进的地方

来源:3-4 编程练习

攻下这座城

2018-07-24 15:15:14

<!DOCTYPE html>
<html>
<head>
        <!-- 此处编写样式 -->
        <style>
            .container{
                width:1200px;
                border:1px lightblue solid;
               
            }
            .herder{
                width:999px;
                overflow: hidden;
                zoom:1;
              
            }
            .footer{
                width: 999px;
                overflow: hidden;
                zoom:1;
            }
            .header .left{
              
                width:333px;
               float: left;
            }
          
            .header .center{
         
                width:333px;
                float: left;
            }
            .header .right:{
             
                width:333px;
                float: left;
            }
             .footer .left{
               
                width:333px;
               float: left;
            }
             .footer .center{
             
                width:333px;
                float: left;
            }
            .footer .right{
             
                width:333px;
                float: right;
            }           
        </style>
       
</head>
<body>  
        <!-- 此处写代码 -->   
        <div class="container">
                <div class="header">
                    <div class="left">
                        <img src="http://climg.mukewang.com/590fe9770001e63102400135.jpg">
                        <p>欢迎来到慕课网学习新知识</p>
                        </div>
                    <div class="center">
                        <img src="http://climg.mukewang.com/590fe97d00011bda02400135.jpg">
                        <p>欢迎来到慕课网学习新知识</p>
                    </div>
                    <div class="right">
                        <img src="http://climg.mukewang.com/590fe982000150ba02400135.jpg">
                         <p>欢迎来到慕课网学习新知识</p>
                    </div>
                </div>
                  <div class="footer">
                    <div class="left">
                        <img src="http://climg.mukewang.com/590fe9770001e63102400135.jpg">
                        <p>欢迎来到慕课网学习新知识</p>
                    </div>
                    <div class="center">
                         <img src="http://climg.mukewang.com/590fe97d00011bda02400135.jpg">
                        <p>欢迎来到慕课网学习新知识</p>
                    </div>
                    <div class="right">
                        <img src="http://climg.mukewang.com/590fe982000150ba02400135.jpg">
                         <p>欢迎来到慕课网学习新知识</p>
                    </div>
                </div>
        </div>
</body>

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1回答

好帮手慕阿莹

2018-07-24

1、当代码比较重复时,可以提取到一个公共的里边,比如:

.footer .left, .footer .center  几个里边的代码一样,你可以把它提到

.footer div中。

例如:

注释掉:

.footer .left{
                
                width:333px;
               float: left;
            }
             .footer .center{
              
                width:333px;
                float: left;
            } 
            .footer .right{
              
                width:333px;
                float: right;
            }

改为:

.footer div{
	        width:333px;
                float: left;
			}

header同理。

2、建议把.container 也设置为999px;

3、建议给图片设置一个左外边距,使其不再紧紧贴着边,而是有个间距,同理,底下的字也可以设置一下: 

img{

margin-left:41.5px;

}

如果我的回答解决了你的疑惑,请采纳!祝学习愉快!

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