I have programmed in CSS too little. In this post, I will keep updating the things that I learned

• Order of CSS classes in the HTML does not matter , when the specificity are same.

  http://stackoverflow.com/questions/3066356/multiple-css-classes-properties-overlapping-based-on-the-order-defined

• CSS Specificity tutorial

  http://coding.smashingmagazine.com/2007/07/27/css-specificity-things-you-should-know/

• CSS Specificity calculator

  http://specificity.keegan.st/

• What does classnames without spaces in the CSS declaration means

  .class1.class2 { //some style }

  The two dots indicate two classes. I.E. It is selecting all elements with a class of class1 AND class2 it’s target HTML would look like this

  http://stackoverflow.com/questions/10824007/what-does-two-dots-in-a-css-declaration-mean