Making this a public post.
First off, it’s best to know what exactly you’re looking to get into. When most people talk about “coding for websites” more often than not they’re thinking about the HTML and CSS that creates the layout and look of the website itself. This is what we call Markup.
If you want to get into designing websites, as in building the looks and layout, getting into HTML and CSS is key.
If you’re looking to do a lot of back-end stuff, you should look into some more traditional programming first since you’ll be applying the basics no matter what platform you choose.
The best starting point for all things web is W3Schools.
After that, places like Stack Overflow will have lots of Q&A to help out with any more specific questions you might have once you’ve started work on a project.
For anything else, you’ll have to know what platform and language you are working with so you can search for tutorials specific to them.
If you’ve got any specific questions, feel free to lay them on me.