Anyone who has used Firebug for developing web pages knows how good it is. Lately I find myself using it for checking style cascades and trying out certain styles “on the fly”. Below are a list of links to Firebug and some of the equivalent tools for other browsers:

• Firefox: Firebug
• Safari: Web Inspector
• Opera: Opera Developer Tools
• Internet Explorer: Microsoft Developer Toolbar

Google Chrome has developer tools built into it, which is nice