In style sheets there are often elements with the same style.
To minimize the code, you can group selectors.
Separate each selector with a comma.
In the example below we have grouped the selectors from the code above:
It is possible to apply a style for a selector within a selector.
In the example below, one style is specified for all p elements, one style is specified for all elements with class="marked", and a third style is specified only for p elements within elements with class="marked":