Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] !-- (exclamation point and dashes) 2nd # (sharp) anchors for id selector & (ampersand) and XHTML (non-breaking space) 2nd 3rd and empty cells in tables * (asterisk) comments in CSS for wild card selector + (plus), for adjacent sibling selectors , (comma), for grouping selectors -- (dashes), in comments 2nd . (period), for class selector / (forward slash) comments in CSS for (X)HTML HTML vs. XHTML in URL 3D positioning 2nd < (less than symbol) (X)HTML elements character reference for > (greater than symbol) (X)HTML elements character reference for for child selector @charset rules @import rules and image replacement for handhelds for print media specific @media rules 2nd [ ] (brackets), for selecting based on attributes \ (backslash) for escaping characters in style sheets in JavaScript | (pipe symbol), in selectors |