1.flex方法:
.center_fix
{
display:flex;
align-items:center;
justify-content: center;
}
具体flex方法教程:可以参见软老师的——》Flex 布局教程:实例篇
2.position:absolute
.center
{ position: absolute; top:50%; left:50%; width: 100px; height:100px; margin-top: -50px; margin-left:-50px; background: teal; }
3.position: fixed;和上一个absolute方法差不多
.center{
position: absolute;
top:50%;
left:50%;
width: 100px;
height:100px;
margin-top: -50px;
margin-left:-50px;
background: teal;
}
4.
.center{
position: fixed;
width: 100px;
height: 100px;
top: 0;
right: 0;
left: 0;
bottom: 0;
margin: auto;
background: teal;
}
5.
.center{
position: absolute;
width: 100px;
height: 100px;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
background: teal;
}
6.CSS3盒模型display:-webkit-box
.center{
display:-webkit-box;
-webkit-box-pack:center;
-webkit-box-align:center;
width:100px;
height:100px;
background:teal;
color:black;
}