弹性盒子（1） 

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <style type="text/css">
            #a{
                width: 800px;
                height: 200px;
                background-color: ghostwhite;
                display: flex;
                /*flex-direction: column;*/
                justify-content: center;
                align-items: center;
                
            }
            .b{
                width: 100px;
                height: 50px;
                background-color: blue;
                text-align: center;
                line-height: 50px;
                border: 1px solid ghostwhite;
                font-size: 20px;
                font-weight: bold;
                
                
            }
        </style>
    </head>
    <body>
        <div id="a">
            <div class="b">
                1
            </div>
            <div class="b">
                2
            </div>
            <div class="b">
                3
            </div>
            
        </div>
    </body>
</html>

 

posted @ 2018-04-03 17:49  淅沥沥丶下雨  阅读(81)  评论(0)    收藏  举报