The internet, and the use of the internet, has changed a lot since HTML 4.01 became a standard in 1999.
Today, several elements in HTML 4.01 are obsolete, never used, or not used the way they were intended. All those elements are removed or re-written in HTML5.
To better handle today's internet use, HTML5 also includes new elements for drawing graphics, adding media content, better page structure, better form handling, and several APIs to drag/drop elements, find Geolocation, include web storage, application cache, web workers, etc.
The New
Tag
Description
Used to draw graphics, on the fly, via scripting (usually JavaScript)
New Media Elements
Tag
Description
Defines sound content
Defines a video or movie
Defines multiple media resources for
Defines a container for an external application or interactive content (a plug-in)
Defines text tracks for
New Form Elements
Tag
Description
Specifies a list of pre-defined options for input controls
Defines a key-pair generator field (for forms)
Defines the result of a calculation
New Semantic/Structural Elements
HTML5 offers new elements for better structure:
Tag
Description
Defines an article
Defines content aside from the page content
Isolates a part of text that might be formatted in a different direction from other text outside it
Defines a command button that a user can invoke
Defines additional details that the user can view or hide
Defines a dialog box or window
Defines a visible heading for a element
Specifies self-contained content, like illustrations, diagrams, photos, code listings, etc.
Defines a caption for a element
Defines a footer for a document or section
Defines a header for a document or section
Defines marked/highlighted text
Defines a scalar measurement within a known range (a gauge)
Defines navigation links
Represents the progress of a task
Defines a ruby annotation (for East Asian typography)
Defines an explanation/pronunciation of characters (for East Asian typography)
Defines what to show in browsers that do not support ruby annotations
Defines a section in a document
Defines a date/time
Defines a possible line-break
Removed Elements
The following HTML 4.01 elements are removed from HTML5:
</li>
<li><strike></li>
<li><tt></li>
</ul>
<div>
<font face="verdana, helvetica, arial, sans-serif"><span style="font-size: 12px; line-height: 16px;"><br></span></font></div>
<div>
<span style="color: rgb(51, 51, 51); font-size: small; background-color: rgb(255, 255, 255);">All contents posted are not uploaded by me. I found them on the net and i am sharing it with you. Hence CREDITS to original uploader</span></div>
<p>
</p>
</div>
