<!DOCTYPE html>
<html>
<head>
<meta content="text/html; charset=utf-8" http-equiv="content-type"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<script data-main="main" src="/bower_components/requirejs/require.js"></script>
<style>
media {
border: 1px solid black;
height: 100px;
width: 100px;
display: block;
background-color: red;
}
</style>
</head>
<body>
<media> my media thing </media>
<br />
<a href="https://www.w3schools.com/html/html5_new_elements.asp">valid elements</a>