css center 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 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 3: how to center div

<!DOCTYPE html>
<html>
<head>
<style>
.center {
  margin: auto;
  width: 80%;
  border: 3px solid #73AD21;
  padding: 10px; # deals with margins within the element itself
  margin: 20px; # deals with area around outside of element
}
</style>
</head>
<body>

<h2>Center Align Elements</h2>
<p>To horizontally center a block element (like div), use margin: auto;</p>

<div class="center">
  <p><b>Note: </b>Using margin:auto will not work in IE8, unless a !DOCTYPE is declared.</p>
</div>

</body>
</html>