rem2 

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <style type="text/css">
            .hh1{
                font-size: 2rem;
            }
            .hh2{
                font-size: 3rem;
            }
        </style>
    </head>
    <body>
        <h1 class="hh1">hello1</h1>
        <h1 class="hh2">hello2</h1>
    </body>
</html>

 

posted @ 2019-03-18 21:15  就这样子吧  阅读(202)  评论(0)  编辑  收藏  举报