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 ## Tutorials and References
  - [A Complete Guide to Flexbox](https://css-tricks.com/snippets/css/a-guide-to-flexbox/) - A good css-tricks tutorial on how the flexbox works
  - [CSS Selectors Reference](http://www.w3schools.com/cssref/css_selectors.asp) - A reference for the CSS selectors with examples
+ - [caniuse](http://caniuse.com) - HTML5 and CSS3 support tables for all the major browsers and versions
+ - [caniuse-cmd](https://github.com/sgentle/caniuse-cmd) - A command line tool to conenct to the above service
 
 ## CSS Resets
  - [Marx](https://mblode.github.io/marx/) - A small and simplle CSS reset