"Retro" can be almost anything. It usually defines something not too old but outdated or aged. It's use in graphic media is vast. In our examples here, we are going to define retro as something that's no longer considered "modern". We can relate to it, but without nostalgia.
As usual, we need some documentation and need to spend some time trying to understand what's considered a retro style. Also, a background for a website can have different dimensions, according to how the site looks. For this background, I'll be using 1280 x 1024 pixel images (Be aware that this is not a standard background size).
The following steps will show you how to create a retro background: