Index[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] handheld media type hanging indents hash mark hash-ID notation headers, table 2nd height property 2nd 3rd percentage values for positioned elements and setting to auto 2nd tables and help cursor hexadecimal color notation hexadecimal notation Highlight system color HighlightText system color horizontal alignment of table cell content of text horizontal formatting, of block-level elements href attribute, link tag HTML element selectors for file size reduced by CSS future of history of presentational elements in structural elements of XML replacing HTML 4 style sheet sample html element as root element inheritance of background styles hyperlinks Hypertext Markup Language |