lovecoding
/
web0715


			
				
					
						
						
							1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950
							<!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{
            border: 2px solid black;
            width: 300px;
            /* height: 300px; */
            margin: 0 auto;
        }
        .box2{
            width: 100px;
            height: 100px;
            border:2px solid blue;
        }
        .box3{
            width: 100px;
            height: 100px;
            border:2px solid red;
        }
        .box2,.box3{
            float: left;
        }
        p{
            clear: both;
        }
        /* span{
            clear: both;
        } */
        .box::after{
            /* 伪元素插入的元素 为行级元素 */
            content: "";
            display: block;
            clear: both;
        }
    </style>
</head>
<body>
    <div class="box">

        <div class="box2"></div>
        <div class="box3"></div>
        <!-- <span>hello</span> -->
         <!-- <p>hello</p> -->
    </div>
</body>
</html>