I've started to create HTML websites, and I have a question about design. I want to get this efect in page borders, an efect like a shadow. But a shadow for all the page background between the content background and the <body> background.
I don't know how to do it and I want to learn. If someone could be so helpful I will be very plesant.
PD: excuse for my english, I'm from Spain. I hope you can understand me.