body { background: #ddadfd; margin: 2px 2px; color: green; font-family: Geneva, Arial, sans-serif; font-size:14px; }See how the back has the background color of ddadfd (purple), the text here is green, and the font type is 'Geneva, Arial, sans-serif'.
The box with the yellow background was made by assigning the InfoForYou class to the <pre class=InfoForYou> tag.
.InfoForYou { background: #edfd4e; border: 1px dashed green; color: #00F; padding: 2px; }
Html Colors has all the web colors on one page.