how to place a container at the center of a screen w3schools code example

Example 1: css center element on screen

.centered {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

Example 2: css align center

//HTML

	Hello World


//CSS
.parent {
  display: flex;
  justify-content: center;
  align-items: center;
}

Example 3: center a div on screen

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

Example 4: center align css

text-align: center;