H1: Formatting (using Helvetica)

H2:Font Families (using italic Time New Roman)

This is a paragraph, shown in the Georgia font.

H2:Text Alignment and Font Size

Default alignment and size.

Centered and 20 pixels sized font.

Aligned to the right and .75 the normal size (.75cm).

Justified and 3% of the window size (3vw) (note that it changes the actual size as you increase or decrease the window width - try it).