Remove obsolete `font` elements

Though once normalized in HTML 3.2, the `font` element was deprecated in HTML
4.01, then obsoleted in HTML5. Starting with HTML 4, HTML does not convey
styling information anymore (outside the `style` element or the `style`
attribute of each element).

Closes #1
Merge pull request #1 from KenanY/remove-font-elements

Remove obsolete `font` elements