Reply To: Change Background Colour Calendar Cell for Today and Past Dates

I think it helps you more If I say you how to find this things out yourself.
You can use the chrome browser (or the firebug plugin for firefox) to inspect elements of a page.
To do this just right-click on the part of the page you want to know more from and click on “inspect element”.
A bar will popup in the bottom. In it’s first and active tab you will see the html source code left and the applied stylesheet classes of the selected element on the right.
With this you cannot only find out which stylesheet classes apply to the element and change it, but also change and add the stylesheet rules to play around without reloading the page dozens of times.