I am basically a PHP developer, but interested in javascript, so learned angularjs and jquery by own. The recent update I got is only learning angular is not enough, need to learn bootstrap also. But I really scared of CSS, because need to deal with pixels and have to design such a way that it has to fit for any device.
Bootstrap does that, ok fine, but how to keep in mind those hundreds of css class names. Can you guys give me some tricks and clues on how to memorize the css classes. And what we have to know before designing a layout (Asking these silly question, because I am into css for the first time).