实例代码“Ctrl+/”提示“F11/ESC”全屏 返回 格式化 恢复 运行
AخA
 
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<!DOCTYPE html>
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<html>
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    <head>
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        <meta charset="utf-8">
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        <title>手册网(www.shouce.ren)
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        </title>
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        <style>
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            #main .box{
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                width:500px;
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                height:500px;
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                border:1px solid black;
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            }
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            .item{
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                width:100px;
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                height:100px;
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                border-radius:50px;
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                background:#000000;
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            }
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            /* flex样式 */
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            .box {
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                display: flex;
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                justify-content: flex-end;
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            }
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        </style>
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    </head>
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    <body>
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        <div id="main">
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            <div class="box">
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                <span class="item">
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                </span>
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            </div>
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        </div>
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    </body>
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</html>