1. 5 Minutes
With HTML5

2. Some new elements...

3. article
aside
audio
dialog
figure
footer
header
nav
section
video
...and others

4. Input type values...

5. <input type="datetime">
<input type="datetime-local">
<input type="date">
<input type="month">
<input type="week">
<input type="time">
<input type="number">
<input type="range">
<input type="email">
<input type="url">
<input type="search">
<input type="color">

6. href anywhere (almost)

7. <a href="http://someurl.com">
<h2>This is a heading</h2>
<p>And this is a paragraph</p> </

8. Weirdness...

9. <header>
<h1>Page Header</h1>
</header>
<section>
<article>
<header>
<h1>Article header</h1>
<h2>Sub heading</h2>
</header>
</article>
</section>

10. Cool Javascript additions

11. getElementsByClassName
Enough said.
classList
with has(), add(), remove() and