One great reply to this question: "What do I need to know to be a web developer?"
All about HTML ... & other fun stuff.
I'm not a programmer, but I know a few things.
To code, you gotta have something to code into; enter, the text editor.
For right now, the main tool Web developers design for is the Web browser.
For something so important, a lot of folks don't really think about 'em.
You've made your website; now you need to put it somewhere.
Communication beyond words.
Some simple ideas about Web content.