Headings: XHTML offers six levels of headings, which use the elements <h1> ,<h2> ,<h3> ,<h4> ,<h5> and <h6>. Browsers display the <h1> element as the largest of the six and <h6> as the smallest. Most browsers display the contents of the <h1> ,<h2> and <h3> elements  larger than the default size of text in […]