Until then, until you've wrestled with 19 variations of CSS hacks on IE5-10, multiple Safari versions, mobile devices and everything else and get it pixel perfect and can do it in your sleep, you're not a real developer. Doesn't matter if that time would be better spent promoting, selling, securing against sql injection/csrf/etc, optimization, or just... having a life - unless you know all versions of CSS across all platforms by heart, you're "uninterested in the craft".
The philosophy of a real developer is that if you ever use someone else's code, you have avoided pain, and thus enlightenment. Enlightenment brings perfect code. The realest of the real roll their own operating systems, complete with custom assembler instructions, and they would never stoop to following a tutorial. Tutorials are the wussies' playthings. To achieve enlightenment, you must achieve the three essential qualities: confusion, anger, and despair. Wussy programmers avoid these things.
Pain-oriented programming may be organized according to units of frustration. Our taxonomy of frustrations includes three types: code frustration, developer frustration, and meta-frustration, the last of which deals with the anguish of being frustrated at being frustrated so much. Pain-oriented programming aims to maximize all of these frustrations.
Wussy programmers, on the other hand, love frameworks, code reuse, and Maven repositories. Wussy programmers are content to avoid reinventing the wheel (a necessary first step for all real programmers), because they have concerns for such silly frivolities as deadlines, maintainability, and standards. The minute you begin to care about anything other than perfect code, you stray from pain, and you might as well stick to writing in cute kiddie languages like Alice.
When it comes down to spending 10 hours on a fancy button that works in all browsers vs spending that time adding features I welcome tools such as bootstrap and jquery.