What is CSS? Cascading Style Sheets (CSS)
cascade tables of styles. Tables of styles - attempt to separate a detail of
design of a page from its structure and the maintenance. In classical HTML we
lumped everything together: near to the text paragraph his color, the size of a
font, type of a font, etc. if you will want to change such simple parameter as
the size of a font on the site - it is necessary to copy all pages. CSS allows
to appoint to all objects style which description can be stored(kept) in general
in a separate file. Using CSS, you can change the size of a font in all pages of
a site, having corrected only one file with the description of styles. The more
different styles you will think up, the more abruptly to change design. The most
important, that it is not necessary to change available HTML the documents
laying on a server. The browser of the user itself will address to a file with
styles and will give to a page the necessary shape.