The Bold element specifies that the text should be rendered in boldface, where available. Otherwise, alternative mapping is allowed.

The instructions <B>must be read</B> before continuing.

would be rendered as :

The instructions must be read before continuing.

<B> can also take the CLASS, ID and STYLE attributes to allow style sheet definitions to be applied to it. For more details of these attributes, see the Style Sheets topic.

<COMMENT> Information and Character Formatting Elements Overview <BIG>