[Rja]

To create a website that is visually stunning do you have to be good at Art or do you just have to get used to working with the programs you create them on?

[creativejunk]

Being artistic would help, I do think you need to know the fundamental principles of graphic design before you can do anything decent.

[mrchristoph]

It helps, but as said above, web design is mostly about using tried and tested techniques i.e. principles that work to create a professional look. Art generally works a bit differently in that new wild ideas are what it's all about. On the other hand if you are wanting to create a crazy out of this world website then you can pursue that route too - it might just work!

[JMCDesigner]

Visually stunning is very much graphic design based. That doesn't necessarily mean you need to be good at art itself (ie being able to draw).