Since the number of the available browser is constantly growing, it becomes every day more important to adhere to international standards. Until the last year, every developer was interested about how much a browser supported the XHTML 1.0 or 1.1 specifications and the CSS 1.0 or 2.0 specifications.
Nowadays things have changed a little bit. We are entering a new dynamic era of internet browsing. Browsers will be even more capable of serving and displaying media contents. Doing what? Correctly implementing the HTML 5 standard and the CSS 3.0 specifications.
This test gives each browser a score, based on how many HTML 5 elements or features can handle correctly. The max score a browser can reach is 300, plus some additional bonus points for not-strictly-necessary features.
I gathered some results for the main web browsers, in the chart you can see below. I tried to use the more recent version for each browser. Just to get an appetizer of what will be next, I also tried a beta/alpha/nightly version of each of them.