To HTML Content Category Heading

Html elements h1, bdo, and mark

h1 element Heading Level 1, bdo element Specifies the text direction for the document, mark element The HTML Mark Element (<mark>) represents highlighted text, i. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

Restore previous example

h1 h1 and bdo, h1, bdo, and mark

Advanced example

Click the html element name in the punctuation list to advance the example in 'Tryit-Editor':

You cannot advance example level further.

HTML element example

Result from the Online TryIt-Editor
chrome 1.0safari 1.0Firefox 4.0ie 9.0opera 11.0