lovecoding
/
W260426


			
				
					
						
						
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							<!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: 3px solid black;
            height: 200px;
            padding: 20px;
            margin-bottom: 20px;
        }

        .box div {
            width: 200px;
            height: 200px;
            text-align: center;
            line-height: 200px;
            color: white;
            font-size: 50px;
        }

        .box .item {
            background-color: red;
            float: left;
            margin-right: 20px;
        }

        .box .item2 {
            background-color: blue;
            float: right;
            margin-left: 20px;
        }
        .box .item3{
            background-color: green;
        }
        .box .item-left{
            float: left;
        }
        .box .item-right{
            float: right;
        }
        .box .item-center{
            background-color: yellow;
            margin: 0 auto;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="item">1</div>
        <div class="item">2</div>
        <div class="item">3</div>
    </div>

    <div class="box">
        <div class="item2">1</div>
        <div class="item2">2</div>
        <div class="item2">3</div>
    </div>

    <div class="box">
        <div class="item3 item-left">左</div>
        <div class="item3 item-right">右</div>
        <div class="item3 item-center">中</div>
    </div>
</body>

</html>