HTML Tutorials for Beginners to Advance

HTML Basic Structure, Elements in HTML, HTML Headlines, List in HTML, Insert Images in Web Pages, Tables in HTML, HTML form design, HTML5 Elements, HTML Canvas, etc.

HTML5 Browser Support

HTML5 is supported in all modern browsers.

In addition, all browsers, old and new, automatically handle unrecognized elements as inline elements.

Because of this, you can "teach" older browsers to handle "unknown" HTML elements.

Define Semantic Elements as Block Elements

HTML5 defines eight new semantic elements. All these are block-level elements.

To secure correct behavior in older browsers, you can set the CSS display property for these HTML elements to block:

See this example:

header, section, footer, aside, nav, main, article, figure {
    display: block;

Add New Elements to HTML

You can also add new elements to an HTML page with a browser trick.

This example adds a new element called <myHero> to an HTML page, and defines a style for it:

See this example:

<!DOCTYPE html>
  myHero {
      display: block;
      background-color: #dddddd;
      padding: 50px;
      font-size: 30px;

<h1>A Heading</h1>
<myHero>My Hero Element</myHero>


The JavaScript statement document.createElement("myHero") is needed to create a new element in IE 9, and earlier.