What is CSS Framework?

(a) It is a library which consists of files
(b) You can make standard compliant web pages using CSS
(c) This is consists of readymade options for your CSS styles

By using CSS framework, you can develop HTML/CSS for your website very easily and very fast

This advantage of CSS Frameworks
(1) Your work will be very fast, because Framework will take care of all repeating task
(2) Your code will meet w3c recommendations
(3) eliminates the discrepancies across browsers
(4) some framework give styles for printing

You can start using these frameworks if you have sufficient knowledge of CSS and HTML. These are very easy to understand. Initially you will find this is bit difficult but when you work with two or three projects by using this framework you can become the master easily. I have listed some of the good frameworks here

1.Elements CSS Frameworks (Source: Project Designs)
2.WYMstyle: a CSS framework (Source: Daniel Reszka)
3.YAML CSS Framework (Source: High Resolution)
4.YUI Grids CSS (Source: Yahoo)
5.Boilerplate CSS Framework
6.Blueprint CSS
7.Schema Web Design Framework
(Source: David Golding Design)
8.CleverCSS
9.Tripoli Beta CSS Framework
(Source: Monc)
10.ESWAT Web Project Framework
(Source: Philip Karpiak)
11.CwS CSS Framework
(Source: Content with Style)
12.My (not really mine) CSS Framework
(Source: That Standards Guy)

These days lots of PSD to HTML conversion coders use these CSS Frameworks to do their HTML work. PSD to HTML coders can complete their project with super speed and according to latest W3C standards. Lot designers also design their work in a way that PSD to HTML coders can slice the pages very easily. Designer should have fair knowledge of how this framework work

Markupmypage.com is one of the best PSD to HTML Conversion Company who use CSS Framework to produce W3C standard HTML. These coders have very high level knowledge about these frameworks