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盒模型和CSS选择器-2019年7月4日
牛niu轰轰的blog
Original
518 people have browsed it
  1. 写一个盒子, 要求用到margin,padding,border, 并用到它们的完整语法, 简写语法

    实例

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>0704作业</title>
        <!--7月4日作业:写一个盒子, 要求用到margin,padding,border,
           并用到它们的完整语法, 简写语法-->
        <style>
            /*完整语法*/
            p{
                color:blueviolet;
            }
            .margin
            {
                magin-top:100px;
                margin-bottom:100px;
                margin-left: 50px;
                margin-right:50px;
            }
            .padding
            {
                padding-bottom:10px;
                padding-top:10px;
                padding-left:20px;
                padding-right:20px;
            }
            /*简写语法*/
            .border
            {
               border-style:dotted solid double dashed;
                /*border-style (required)*/
                /*上边框是dotted,右边框是solid,底边框是double,左边框是dashed*/
                border-width:10px 20px;
               /*borders属性设置:border-width,border-style(required),border-color*/
            }
        </style>
    </head>
    <!--在头部放置盒子边框、填充、边距属性值-->
    <body>
    <p class="border">这是一个边框盒子</p>
    <p class="padding">这是一个填充盒子</p>
    <p class="margin" color="red">这是一个外边距盒子</p>
    </body>
    </html>

    运行实例 »

    点击 "运行实例" 按钮查看在线实例

  2. . 模仿课堂案例, 熟悉基本选择器的用法: 属性, 兄弟, 类型, 伪类等,自己举例完成,例如商品列表等来完成它, 重点放在nth-child, nth-of-type的理解上, 一定要多练多想为什么,并能分析执行的结果。

  3.  写出你对常用选择器的使用体会, 重点放在标签, class, id, 后代, 群组, 以及常用伪类上。

 

Correction status:qualified

Teacher's comments:合格
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