lovecoding
/
VIP32


			
				
					
						
						
							1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071
							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box {
            /* overflow: auto; */
            /* overflow: hidden; */
        }
        .one {
            width: 200px;
            height: 200px;
            background: #00f;
            float: left;
        }
        .two {
            width: 200px;
            height: 200px;
            background: #f0f;
            float: left;
        }
        .three {
            width: 200px;
            height: 200px;
            background: #0ff;
            float: left;
        }
        .four {
            width: 200px;
            height: 200px;
            background: #0f0;
            float: left;
        }
        .five {
            clear: right;
        }
        /* .clearfix::after {
            content: "";
            display: block;
            clear: both;
        } */
    </style>
</head>
<body>
    <!--
        浮动导致的问题？
            使用浮动标签的父元素的高度塌陷
        清浮动：
            1.溢出隐藏法
                在塌陷的父元素上添加overflow：hidden/auto属性
            2.伪元素清浮动
                .clearfix::after {
                    content: "";
                    display: block;
                    clear: both;
                }
                将 属性名添加到高度塌陷的父级盒子上
            3.额外标签法 
                在浮动的同级添加一个空盒子 然后给这个盒子一个样式clear:both/left/right/none
     -->
    <div class="box">
        <div class="one"></div>
        <div class="two"></div>
        <div class="three"></div>
        <div class="four"></div>
        <div class="five"></div>
    </div>
</body>
</html>