<div class="container100"> <div class="contents100"> <p> 文章 </p> </div> <div class="footer100"> footer:150px </div> </div>
.container100{ min-height: 100vh; display: flex; flex-direction: column; } .contents100{ flex: 1; max-width:800px; margin:0 auto; padding:10px; } .footer100{ height: 150px; text-align:center; color:#ffffff; background:#000000; }