how to put div center of screen 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: center a div on screen

.class{
position: realtive;
text-align: center;
top: 50%;
transform:translateY(-50%);
}