Hiding elements that require JavaScript without JavaScript

I&rsquo;ve tried my best to make sure that this site works great (or at least reasonably well) even without JavaScript, but when JavaScript isn&rsquo;t available, it can be a little clunky to hide things that do require it. With a mere 7 lines (or a one-liner if you&rsquo;re nasty), you can easily hide elements that require JavaScript so that you don&rsquo;t end up with broken functionality…