If you are hand typing each and every one of those characters by hand you're doing it wrong. There are a lot of projects out there aimed at making writing HTML faster.

For example, http://emmet.io/

The problem with your "15 seconds" example is that it is almost completely unreadable. .container? Ok, .container what? Is it a <p>? <div>? <span>? I think you're losing a lot more by trying to gain 30 seconds of time.