If you have multiple CSS definitions to be applied to the same HTML tag, you can write them together delimited with semicolon (;). The following CSS provides you a good example of CSS definition groups:

pre.code {background-color: #efefef; width: 502px;

margin: 4px; padding: 4px}

The above CSS code is identical to the following CSS code:

pre.code {background-color: #efefef}

pre.code {width: 502px}

pre.code {margin: 4px}

pre.code {padding: 4px}