CSS: pseudo-element selector (::)

tag::first-letter

the first letter of a tag element.

tag is optional. It can be a simple selector (selecting by tag name, id, class etc) or a compound selector (combination of tag name, id, class etc). If empty, it means the universal selector (* any tag).

• CSS: First Letter

tag::first-line

the first rendered line of a tag element.

• CSS: First Line

tag::before

insert content before a tag element.

• CSS: insert content ::before ::after

tag::after

insert content after a tag element.

• CSS: insert content ::before ::after

tag::marker

Selects the marker box of a list item.

• CSS: ::marker (for list item)

Other pseudo-element selectors

• ::cue
• ::selection
• ::slotted