I question starting people on Ruby for web development. It was big and popular, but I feel that the popularity is fading (has faded?) for new projects, and there's a lot of magic in that language, too.
Anyone starting web development now would do well to stick with Javascript. No, it's not the nicest language, but there's no avoided it. And you can always use that on the backend if you have to - and if you need to spend time learning something for the backend part you'd be better served learning about relational databases than Ruby.
Anyway, between JS, HTML, and CSS, you're going to have a lot to learn. At least with CSS these days you can pretty much start with flexbox for layout, and maybe if you're lucky you'll never have to learn all the old horrible methods of getting things to look reasonable - or you'll have a solid foundation when you do encounter them.
Anyone starting web development now would do well to stick with Javascript. No, it's not the nicest language, but there's no avoided it. And you can always use that on the backend if you have to - and if you need to spend time learning something for the backend part you'd be better served learning about relational databases than Ruby.
Anyway, between JS, HTML, and CSS, you're going to have a lot to learn. At least with CSS these days you can pretty much start with flexbox for layout, and maybe if you're lucky you'll never have to learn all the old horrible methods of getting things to look reasonable - or you'll have a solid foundation when you do encounter them.