CSS 发表于 2018-03-01 | 阅读次数: 1.CSS解决高度自适应问题1234<div id="main"> <div id="nav">nav</div> <div id="content">content</div></div> 12345678910111213141516171819202122html, body, #app { height: 100%; margin: 0; padding: 0;}#main { position: relative; height: 100%; width: 120px; background-color: #999;}#nav { height: 50px; background-color: #85d989;}#content { position: absolute; top: 50px; bottom: 0; width: 100%; background-color: #cc85d9;}