This element sets the font size.
The letter N represents the size of the font relative to the base
font of the document.
To display text in a size equal to the base font using the <h> tag.
The value of N can be from 1 to 6.
The size of the font has an inverse relationship with the number,
so 1 is the largest font, and 6 is the smallest font.
<hN attributes events> . . . </hN>