class for center align code example

Example 1: how to make a division center css

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

Example 2: how to center align the html element in css examples

#inner {
  width: 50%;
  margin: 0 auto;
}

# center text
.center {
  text-align: center;
  
border: 3px solid green;
}