make div in center of page css 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 center a div

.container {
  ...
  display: flex;
  justify-content: center;
}

Example 3: how to put container in center of page

div.InSkinAlignCenter {
margin: 0 auto;
}