center of div to center of page code example
Example 1: center div in middle of page
.centered {
position: fixed;
top: 50%;
left: 50%;
/* bring your own prefixes */
transform: translate(-50%, -50%);
}
Example 2: how to put container in center of page
#container
{
width: 400px;
margin-left: auto;
margin-right: auto;
}