Title and Headings in Html

In HTML, a title is exactly what it looks : a real title or a subtitle.When you put a text in a tag <h1> , the text will be bolded, and the dimension of the letter will be the same with the number of the heading. The titles can have dimensions form 1 to 6 , where 1 is the smallest dimension and 6 the biggest

dimension.

HTML
<h1>Headings</h1>
<h2>are</h2>
<h3>great</h3>
<h4>for</h4>
<h5>titles</h5>
<h6>and subtitles</h6>