Using Firebug to change the CSS styles of the theme
With Firebug you can change any of the CSS styles of a element in the theme and it will automatically update the page so you can see your changes in action. To do this you just need to click on the attribute you want to change ( in the CSS panel ) and you will find that Firebug will let you edit it. When you change the attribute on an element in the Firebug window, it automatically updates on the page