align items in the center of a div code example

Example 1: css align center

//HTML
<div class="parent">
	<span>Hello World</span>
</div>

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

Example 2: css align items vertical center

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

Example 3: css align center vertical and horizontal

.parent-class {
  display: flex;
  align-items: center;
  justify-content: space-around;
}