There
is some differences between HTML and HTML5. So though, we have:
HTML5
was designed to replace both HTML 4, XHTML, and the HTML DOM Level 2.
And
XHTML is HTML + XML. For a better syntax and for a better
administration they had to force HTML to be proper: for instance, if
you open this tag <p> you have to close the tag with
</p>.
The
main goals of HTML5 are:
-
Deliver rich content as graphics or movies without the need of
additional plugins as Flash, for instance;
-
Provide better semantic support for web page structure. For this,
HTML5 introduces new structural element tags;
-
Provide better cross-platform support (for PC browser, tablet or
smartphone);
-
Provide a stricter parsing standard to simplify error handling,
ensure more consistent cross-browser behavior.
HTML5
has improved the support for
embedding graphics, video and audio. For that HTML5 has
some new tags: <canvas>, <audio>,
<video>
HTML5
has introduced web workers.
A web worker is a script that runs in the background, in another
thread, without the page has to wait for it to complete. The visitor
can continue to interact with the page while the web worker runs in
the background.
HTML5
has new semantic tags to
complement the structural logic of modern web applications. Here we
have:
<main>
<nav>
<article>
<section>
<header>
<footer>
<aside>
HTML5
has new controls like
<calendar>
<date>
<time>
<email>
<url>
<search>
HTML5
has new extensions to the Javascript API as geolocation,
drag-and-drop, storage
and caching.
