jsFiddle is the perfect solution; it provides a custom environment (based on user selections) to test (or fiddle with) your JavaScript, HTML, and CSS code right inside your browser.

Tony Patton focuses on CSS fundamentals and explains how multiple rules for the same element are handled. Multiple rules ensure that there will be no surprises for either you or the user community.

Ross Johnson has some beautiful examples of CSS headlines and more, including code. If you aren’t naturally a type nerd, you may be surprised that the Coudal Partners \[…\] Skip to main content ...