- selector(s) -- tag, id (#), class (.), child-of (>)
- cascade(s) -- selector selector selector
- pseudo class -- ;active, ;focus, :hover, ..., :first-child
- pseudo element(s) -- :before, :after
- dimension(s) -- px, em, %, cm
- display -- block, inline, none, list-item, ...
- border -- bottom, color, style, ...
- layout(s) -- positioning(s), margin(s), padding(s), width, height, ...
- effect(s) -- z-index, opacity, color(s)
- style(s) -- content, font, ...
- text -- color, direction, align, spacing, ...
element(s) -- block, inline, float
