make content all center in container code example
Example 1: how to put container in center of page
#container
{
width: 400px;
margin-left: auto;
margin-right: auto;
}
Example 2: how to assign something in center inside a div
IMG.displayed {
display: block;
margin-left: auto;
margin-right: auto }
...
<IMG class="displayed" src="..." alt="...">