| Property | Description |
| ::after | Describes generated content after an element’s content. |
| ::before | Describes generated content before an element’s content. |
| ::first-letter | Represents the first letter of an element. |
| ::first-line | Describes the contents of the first formatted line of an element. |
| :active | Applies while an element is being activated by the user. |
| :checked | Applies to elements that have the selected and checked attributes. |
| :disabled | Represents user interface elements that are in a disabled state. |
| :empty | Represents an element that has no children. |
| :enabled | Represents user interface elements that are in an enabled state. |
| :first-child | Represents an element that is first in a list of siblings. |
| :first-of-type | Represents an element that is the first sibling of its type. |
| :focus | Applies while an element has the focus (accepts keyboard or mouse events, or other forms of input). |
| :hover | Applies while the user designates an element with a pointing device, but does not necessarily activate it. |
| :lang | Represents an element based on its language. |
| :last-child | Represents an element that is last in a list of siblings. |
| :last-of-type | Represents an element that is the last sibling of its type. |
| :link | Applies to links that have not yet been visited. |
| :not() | Represents elements that do not match a given list of selectors. |
| :nth-child() | Selects child elements based on their index. |
| :nth-last-child() | Selects child elements based on their index, counting from the end. |
| :nth-last-of-type() | Selects elements of the same type (tag name), based on their index counting from the end. |
| :nth-of-type() | Selects elements of the same type (tag name), based on their index. |
| :only-child | Represents an element without any siblings. |
| :only-of-type | Represents an element that has no siblings of the same type (tag name). |
| :root | Represents an element that is the root of the document. |
| :target | Selects the target element of the document. |
| :visited | Applies once the link has been visited by the user. |