前端基础面试题之语义化+块级元素和内联元素+css布局盒模型

Posted 2023-02-25 泠泠在路上

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了前端基础面试题之语义化+块级元素和内联元素+css布局盒模型相关的知识，希望对你有一定的参考价值。

html语义化

块状元素和内联元素

CSS盒模型

BFC理解与应用

对于 $\\color#FF0000BFC$ 的布局方式，会在下一篇博客中详细进行介绍，这个知识点在CSS布局中还是很重要的。https://blog.csdn.net/u012396955/article/details/111315837

圣杯布局和双飞翼布局

$\\color#B22222圣杯布局：$

<style type="text/css">
        body 
            min-width: 550px;
        
        #header 
            text-align: center;
            background-color: #f1f1f1;
        
        #container 
            padding-left: 200px;
            padding-right: 150px;
        
        #container .column 
            float: left;
        
        #center 
            background-color: #ccc;
            width: 100%;
        
        #left 
            position: relative;
            background-color: yellow;
            width: 200px;
            margin-left: -100%;
            right: 200px;
        
        #right 
            background-color: red;
            width: 150px;
            margin-right: -150px;
        
        #footer 
            text-align: center;
            background-color: #f1f1f1;
        
        /* 手写 clearfix */
        .clearfix:after 
            content: '';
            display: table;
            clear: both;
        
    </style>

<body>
    <div id="header">this is header</div>
    <div id="container" class="clearfix">
        <div id="center" class="column">this is center</div>
        <div id="left" class="column">this is left</div>
        <div id="right" class="column">this is right</div>
    </div>
    <div id="footer">this is footer</div>
</body>

$\\color#B22222双飞翼布局：$

<style type="text/css">
        body 
            min-width: 550px;
        
        .col 
            float: left;
        
        #main 
            width: 100%;
            height: 200px;
            background-color: #ccc;
        
        #main-wrap 
            margin: 0 190px 0 190px;
        
        #left 
            width: 190px;
            height: 200px;
            background-color: #0000FF;
            margin-left: -100%;
        
        #right 
            width: 190px;
            height: 200px;
            background-color: #FF0000;
            margin-left: -190px;
        
    </style>

<body>
    <div id="main" class="col">
        <div id="main-wrap">
            this is main
        </div>
    </div>
    <div id="left" class="col">
        this is left
    </div>
    <div id="right" class="col">
        this is right
    </div>
</body>

flex布局

<style type="text/css">
        .box 
            width: 200px;
            height: 200px;
            border: 2px solid #ccc;
            border-radius: 10px;
            padding: 20px;

            display: flex;
            justify-content: space-between;
        
        .item 
            display: block;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: #666;
        
        .item:nth-child(2) 
            align-self: center;
        
        .item:nth-child(3) 
            align-self: flex-end;
        

    </style>

<div class="box">
        <span class="item"></span>
        <span class="item"></span>
        <span class="item"></span>
    </div>

以上是关于前端基础面试题之语义化+块级元素和内联元素+css布局盒模型的主要内容，如果未能解决你的问题，请参考以下文章