how to align center css 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 center

/* this will center all children within the parent element. */
.parent {
  display: flex;
  justify-content: center; /* horizontal */
  align-items: center; /* vertical */
}

Example 3: css align center

/* This works wonderfully when you know the size of
the thing you are centering. If you don’t know, or are 
thinking it might change and want to be future proof,
try this: */

.centered {
   position: fixed;
   top: 50%;
   left: 50%;
   /* bring your own prefixes */
   transform: translate(-50%, -50%);
}

/* The translate value for transform is based off the size
of the element, so that will center nicely. */

Example 4: centering horizontally

div.center{display:block;margin:auto;width:50%;}
p.center{text-align:center;}

Example 5: css align center

.center {
  margin: auto;
  width: 50%;
  border: 3px solid green;
  padding: 10px;
}