Tag Description <!--...--> Defines a comment <!DOCTYPE> Defines the document type <a> Defines a hyperlink <abbr> Defines an abbreviation or an acronym <acronym> Not supported in HTML5. Use <abbr> instead. Defines an acronym <address> Defines contact information for the author/owner of a document <applet> Not supported in HTML5. Use <embed> or <object> instead. Defines an embedded applet <area> Defines an area inside an image-map <article> Defines an article <aside> Defines content aside from the page content <audio> Defines sound content <b> Defines bold text <base> Specifies the base URL/target for all relative URLs in a document <basefont> Not supported in HTML5. Use CSS instead. Specifies a default color, size, and font for all text in a document <bdi> Isolates a part of text that might be formatted in a different direction from other text outside