Something really cool Fonts come in 7 sizes. The default size depends on the browser. If you don't give a font size then it will take the default size. You can also make it negative ie. Top Changing the Font Now lets take a look at changing the actual Font.
Every browser has a default font setting - font name, size and color.
Of course we can specify font names other than the defaults. The font will only display if your viewer has that font installed on their computer. If the person looking at the page doesn't have installed on their computer the font you specify, then they will only see the default font. So be very judicious in your use of fonts. Arial and Comic Sans MS are pretty widely distributed with Windows.