Semantic HTML 101 Semantic HTML elements provide meaning and structure to web content. It helps search engines and browsers better understand the content and relationships on the page.

Semantic HTML has an element called the <aside> HTML element. The <aside> element also has an opening and a closing tag that denotes the beginning and the end of the <aside> content. It looks like ...

Most of these Semantic HTML5 elements are treated as block elements by default unless otherwise noted. Support even the oldest browsers with the following sample polyfill: <!--[if lt IE 9]> <script> ...