display block align items center code example

Example 1: how to center an ing with block display

img{
    display: block;
    margin-left: auto;
    margin-right: auto;
    }

Example 2: css align-items center

div {
  display: flex;
  align-items: center;
}

Example 3: how to align a component in the middle of page

div {
	width: 100px;
	height: 100px;
	background-color: red;
	
	position: absolute;
	top:0;
	bottom: 0;
	left: 0;
	right: 0;
  	
	margin: auto;
}