Needles and haystacks
Turns out that making a website is hard! You may start off simply, with the most basic of code, but if the site has more than one or two pages, and you want to make those pages pretty and responsive and everything, you'll easily wind up with a few thousand lines of technobabble filling your screen. And if, should you be the most unlucky of web design novices, said website requires a contact form, pop up menus, a slider and various other bells and whistles you may find that the slightest imprecision can result in, oh, two or three weeks of hitting your head against the walls trying to figure out why the DAMN thing isn't doing what you have expressly designed it to do. And then someone will come along behind you, point at the screen and say, "you've forgotten to put in X right there." And you'll blink a few times, the blurred lines of code will slowly swim into focus again and you'll realize that, yes, you did forget X (whatever X happens to be) and that the soul-draining, nerve-wracking, migraine-inducing hell of the past three weeks was ridiculously easy to fix after all. And you'll laugh, in relief at first and then in mounting hysteria, until the tears are pouring from your eyes and you sound like Dr Evil on LSD, and you'll stand up, turn around to face the interloper who just carelessly pointed this out to you with as little forethought as one might commit to swatting an annoying mosquito and who is now looking at you as if you may just have taken leave of your senses (which you probably have, all things considered) and you will attempt to bludgeon his smug head in with a desk chair.
That's web design, folks!