1、利用line-height和vertical-align
html<div class="box"> <span>测试文字</span></div>css.box{ width: 200px; height: 200px; overflow: hidden; background: #ccc; text-align: center;}.box span{ vertical-align: middle; line-height: 200px;}
2、利用display:table-cell实现水平垂直居中显示
css.table{ display: table;}.cell{ display: table-cell; vertical-align: middle; text-align: center;}
3、利用定位方式position+transform实现水平垂直居中显示
css.box{ position: relative;}.box span{ position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);}
4、利用display:flex
cssdisplay:flex;flex-direction: row;justify-content: space-around; align-items: center;
5、利用display:box