how to put text in the middle of the page CSS code example

Example 1: how to assign something in center inside a div

IMG.displayed {
    display: block;
    margin-left: auto;
    margin-right: auto }
...
<IMG class="displayed" src="..." alt="...">

Example 2: how to put container in center of page

div.InSkinAlignCenter {
margin: 0 auto;
}