/* Applies to the entire body of the HTML document (except where overridden by more specific selectors). */ body { margin: 25px; background-color: rgb(240,240,240); font-family: arial, sans-serif; font-size: 14px; } /* Applies to all

...

elements. */ h1 { font-size: 35px; font-weight: normal; margin-top: 5px; } /* Applies to all elements with <... class="someclass"> specified. */ .someclass { color: red; } /* Applies to the element with <... id="someid"> specified. */ #someid { color: green; }