Arranged in good order; orderly; appropriate; neat; kept in proper and becoming neatness, or habitually keeping things so; as, a tidy lass; their dress is tidy; the apartments are well furnished and tidy.
large in amount or extent or degree; "it cost a considerable amount"; "a goodly amount"; "received a hefty bonus"; "a respectable sum"; "a tidy sum of money"; "a sizable fortune"
"HTML Tidy" is a tool for detecting and correcting a wide range of markup errors prevalent in HTML. It can also be used as a tool for converting existing HTML content to be well formed XML. Tidy is being made available on the same terms as other W3C sample code, i.e. free for any purpose, and entirely at your own risk. It is available from: http://www.w3.org/Status.html#TIDY