center an absolute pseudi element code example

Example 1: center absolute element css

#content {
  position: absolute; 
  left: 0; 
  right: 0; 
  margin-left: auto; 
  margin-right: auto; 
  width: 100px; /* Need a specific value to work */
}

Example 2: center absolute suedo element

left: 50%;
position:absolute;
top:50%;
transform:translate(-50%,-50%);