align-items.html

<!DOCTYPE html>
<html>
<head>
<style> 
#main {
  width: 220px;
  height: 300px;
  border: 1px solid black; 
  display: flex;
  align-items: center;
}

#main div {
  flex: 1;
  border: 1px solid black;
  display: flex;
  align-items: center;
}
</style>
</head>
<body>

<h2>align-items: center</h2>

<div id="main">
  <div style="background-color:coral;min-height:30px;">RED</div>
  <div style="background-color:lightblue;min-height:50px;">BLUE</div>  
  <div style="background-color:lightgreen;min-height:190px;">Green div with more content.</div>
</div>

<p><b>Note:</b> Internet Explorer 10 and earlier versions do not support the align-items property.</p>

</body>
</html>