Briefly describe some common CSS style tools that developers have handy so that they do not need to recreate the same CSS for each Web site they build.

What will be an ideal response?

Reset sheet-Because browsers handle default margins, padding, and fonts differently, a reset CSS style sheet that specifically resets individual settings helps developers to start with a clean slate.
Templates-Web developers have a collection of various templates, with CSS, for common layouts such as two-column and three-column designs.
Browser-specific CSS-Because browsers handle advanced CSS techniques differently, Web developers will have a collection of CSS code that handles specific style properties for specific Web browsers or versions of Web browsers.