Another UI framework.<p>So that's...<p>HTML/CSS/JS:<p><a href="http://getbootstrap.com" rel="nofollow">http://getbootstrap.com</a><p><a href="http://bourbon.io" rel="nofollow">http://bourbon.io</a><p><a href="http://foundation.zurb.com" rel="nofollow">http://foundation.zurb.com</a><p><a href="http://semantic-ui.com" rel="nofollow">http://semantic-ui.com</a><p><a href="https://getmdl.io" rel="nofollow">https://getmdl.io</a><p><a href="https://getuikit.com" rel="nofollow">https://getuikit.com</a><p><a href="http://purecss.io" rel="nofollow">http://purecss.io</a><p><a href="http://materializecss.com" rel="nofollow">http://materializecss.com</a><p><a href="https://mincss.com" rel="nofollow">https://mincss.com</a><p><a href="http://basscss.com" rel="nofollow">http://basscss.com</a><p><a href="https://muicss.com" rel="nofollow">https://muicss.com</a><p><a href="http://bulma.io" rel="nofollow">http://bulma.io</a><p>---------<p>React:<p><a href="https://react-bootstrap.github.io" rel="nofollow">https://react-bootstrap.github.io</a><p><a href="http://www.material-ui.com" rel="nofollow">http://www.material-ui.com</a><p>---------<p>Phew. And people complain about JavaScript frameworks. Those are just the ones I've remembered. Probably a hundred more whose names my memory did not retain. Varying use cases for the likes of min.css and Material Design Lite/clones but still.<p>I also developed my own (it would be unfair to call it a framework in my case) boilerplate for front-end work, but even if I turned it into a UI framework, I wouldn't be able to justify adding to the list above.<p>I'm in two minds about UI frameworks anyway. I keep mine as a boilerplate because I like to offer significantly different design options when I develop a website for a client, and I think front-end frameworks have played some part in the samey-ness of all websites today.<p>That said, how many start-ups have launched with less money spent on front-end developers thanks to Bootstrap? Lots, I'm sure.<p>How many hours were saved not working out all of the IE8 hacks Bootstrap includes as standard? Many, many, many.<p>Bootstrap and friends can all be chopped down to size before you even download the source files. Others like Bass CSS are designed to be extremely malleable, so I'm
not sure what else there is to bring to the table.<p>Stuff like Bulma is flexbox-based, which is advertised as a feature, though I'm not sure it should be. In my experience, any mention of flexbox means 'less reliable than using <i>float</i>/<i>display: inline-block</i>/<i>position: absolute</i> for older browsers'