f7723559_CSS_HTML_XHTML_Reference_Book__Description_and_notes
[Property/Values] max-height, max-width either a length, percentage, none, or inherit [Description and notes] 
for setting the maximum height and/or width of an element, respectively initial value: none; may not be applied to non-replaced inline elements or table elements; not inherited; percentages refer to height/width of containing block
CSS HTML XHTML Reference Book
Description and notes