> Why shouldn't we copy best practices over without understanding it? I'm surprised to see this question being asked non-ironically. I can see myself using a l

> Why shouldn't we copy best practices over without understanding it? I'm surprised to see this question being asked non-ironically. I can see myself using a library function without fully understanding it, but copy-and-paste? This may be acceptable in something like CSS (since the comment mentions 'vertically aligning elements), but for solving any non-trivial problem, this is probably not a good way to go.