CSS3 - Translate to plain english

Question

Can someone please translate the following CSS to plain English for me.

#menu ul li:first-child > a:after

Answer 1

#menu ul li:first-child > a:after

means:

Target the :after pseudo-element (technically, ::after)...

which is associated with an anchor element (a)...

that is a child of a list item (li)...

which is first on the list among siblings (:first-child).

The li must be a descendant (but not necessarily a child) of an unordered list (ul)...

which itself is a descendant of an element with the id value of menu.

Answer 2

#menu ul li:first-child > a:after

Select :after pseudo element inside a element, the a element should be the direct child of li and the li should be the first child of any ul inside any element which have #menu id

Answer 3

Apply the defined styles to the :after pseudo element of all a elements that are children of the first li element inside of all ul elements that are inside an element with id menu.

Or

Selects any content placed after an a element that is a child of a li element that is a first child that is a descendant of an ul element that is a descendant of any element with an id attribute that equals menu.

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