You have a variety of options, but here we'll use the simplest.

If there is no style, the text will take on the default font style, size and color determined by the browser.

Font families

ariel or helvetica or another sans-serif

verdana is another sans-serif

times the serif font

georgia, a "fancy" serif type

courier

Type size: This line of text has the default size with one exception.

Type color: You can set a part a different. It's determined right here in this line of type.

Or you can set the whole paragraph a different color.

You can mix it all up, too!

and you can make text bold, or italic or even strike-through