The <b> tag specifies bold text.
Note: According to the HTML 5 specification, the <b> tag should be used as a LAST resort when no other tag is more appropriate. The HTML 5 specification states that headings should be denoted with the <h1> to <h6> tags, emphasized text should be denoted with the <em> tag, important text should be denoted with the <strong> tag, and marked/highlighted text should use the <mark> tag.
Tip: You can also use the CSS "font-weight" property to set bold text.
The <b> tag also supports the Global Attributes in HTML.
The <b> tag also supports the Event Attributes in HTML.
HTML tutorial: HTML Text Formatting
HTML DOM reference: Bold Object
Most browsers will display the <b> element with the following default values: