<img alt="About image" src="path/to/image">
<h6>Image of Mars.</h6>

<figure>
<img alt="About image" src="path/to/image">
<figcaption>
<h6>This is an image of something interesting. </h6>
</figcaption>
</figure>

<link rel=stylesheet type=text/css href="path/to/stylesheet.css">
<script type=text/javascript src="path/to/script.js"></script>

<link href="path/to/stylesheet.css">
<script src="path/to/script.js"></script>

<h6 id=someId class=myClass> Start the reactor.</h6>

<h2>To-D0 List</h2>
<ul contenteditable>
　　<li>Break mechanical cab driver</li>
　　<li>Drive to abandoned factory</li>
　　<li>Watc</li>
</ul>

<FORM method=get>
<LABEL for=email>Email:</LABEL>
<INPUT id=email type=email name=email>
<BUTTON type=submit> Submit Form </BUTTON>
</FORM>

header, footer, article, section, nav, menu, hgroup {
display: block;
}

document.createElement("article");
document.createElement("footer");
document.createElement("header");
document.createElement("hgroup");
document.createElement("nav");
document.createElement("menu");

<SCRIPT mce_src="http://html5shim.googlecode.com/svn/trunk/html5.js"></SCRIPT> _fcksavedurl=""http://html5shim.googlecode.com/svn/trunk/html5.js"></SCRIPT>" _fcksavedurl=""http://html5shim.googlecode.com/svn/trunk/html5.js"></SCRIPT>"

<HEADER>
<HGROUP>
<H1> Recall Fan Page </H1>
<H2> Only for people who want the memory of a lifetime. </H2>
</HGROUP>
</HEADER>

<input type="text" name="someInput" required>
<input type="text" name="someInput" required="required">

<from method=post>
<label for=someInput> Your Name: </label>
<input id=someInput type=text name=someInput placeholder="Douglas Quaid" required="required">
<button type=submit>Go</button>
</form>

<INPUT type=text name=someInput placeholder="Douglas Quaid" required="required" autofocus="autofocus">

<audio controls="controls" autoplay="autoplay">
<source src="file.ogg" _fcksavedurl=""file.ogg"" _fcksavedurl=""file.ogg"" />
<source src="file.mp3" />
<a href="file.mp3">Download this file.</a>
</audio>

<video controls preload>
<source src="cohagenPhoneCall.ogv" type="video/ogg; codecs='vorbis, theora'" />
<source src="cohagenPhoneCall.mp4" type="video/mp4; 'codecs='avc1.42E01E, mp4a.40.2'" />
<div>
Your browser is old.
<a href="cohagenPhoneCall.mp4">
Download this video instead.
</a>
</div>
...
</video>

<video preload="preload">
...
</video>

<video controls="controls" preload="preload">
...
</video>

<form method=post action="">
<label for=username>Create a Username: </label>
<input id=username type=text name=username placeholder="4 <> 10" required="required" autofocus="autofocus" pattern="[A-Za-z]{4,10}">
<button type=submit>Go </button>
</form>

alert( 'pattern' in document.createElement('input') ) // boolean;

<script>
if (!'pattern' in document.createElement('input') ) {
// do client/server side validation
}
</script>

<h3> Search Results </h3>
<h6> They were interrupted, just after Quato said, <mark>"Open your Mind"</mark>. </h6>