1: background
background-position:center center;
2: Positioning
position:absolute;
left:50%;
margin-left: -width of one half;
3: to set a picture box
This box set
text-align:center;
overflow:hidden;
Picture Settings margin: 0 -100%;
1: background
background-position:center center;
2: Positioning
position:absolute;
left:50%;
margin-left: -width of one half;
3: to set a picture box
This box set
text-align:center;
overflow:hidden;
Picture Settings margin: 0 -100%;