如何在div中水平和垂直居中？
解决方法
这应该符合您的需求.这是一个css-2D过渡技巧.我最近遇到了以下解决方案：
* {
font-family: Arial;
font-size: 14px;
-webkit-font-smoothing: antialiased;
text-rendering: optimizeLegibility;
}
*:after,*:before {
content: "";
display: table;
}
*:after {
clear: both;
}
.title {
font-family: Georgia;
font-size: 36px;
line-height: 1.25;
margin-top: 0;
}
.blocks {
position: relative;
}
.block {
position: relative;
display: inline-block;
float: left;
width: 200px;
height: 200px;
font-weight: bold;
color: #FFFFFF;
margin-right: 10px;
margin-bottom: 10px;
}
.block:first-child {
background-color: green;
}
.block:nth-child(2) {
background-color: red;
}
.block:nth-child(3) {
background-color: blue;
}
.h-center {
text-align: center;
}
.v-center span {
position: absolute;
left: 0;
right: 0;
top: 50%;
transform: translate(0,-50%);
}
<h1 class="title">3 Boxes with different text-align settings.</h1> <div class="blocks"> <div class="block h-center">horizontally centered lorem ipsun dolor sit amet</div> <div class="block v-center"><span>vertically centered lorem ipsun dolor sit amet lorem ipsun dolor sit amet</span></div> <div class="block h-center v-center"><span>horizontally and vertically centered lorem ipsun dolor sit amet</span></div> </div>
注意：这也适用于：after和：之前的伪元素.
你也可以在这里阅读：css-tricks.com
你可以在这里测试一下：jsfiddle
