垂直居中
绝对定位垂直居中
<style> .bigbox{ width: 100px; height: 100px; background-color: red; position: relative; } .smallbox{ width: 50px; height: 50px; background-color: blue; position: absolute; top:50%; transform: translateY(-50%); } style> <body> <div class="bigbox"> <div class="smallbox"> div> div> body>
图片垂直居中
vertical-align: middle;