Working notes on Selectors: Child Selector, .class1 .class2, :nth-child(n), and multiple classes.
Child Selector
>.
First-child, last-child.
.class1 .class2
Both.
Parent:class1 elem:class2.
:nth-child(n)
Applicable to class, id, tag.
multiple classes
.class1.class2.
Selects that who has both classes (inline).
(can also be used further as parent selector).
Updated:
2026 Aug 19

