Poquessing

Courses are free and vary in difficult.

Make the most of your summer by expanding your skills with some of these 650 free university courses on programming and computer science.

Excellent way for beginners to learn CSS for formatting web pages.

This is a great way for beginners to learn HTML web page structuring.  

CS First is a free program that increases student access and exposure to computer science (CS) education through after-school, in-school, and summer programs.