Some effects and techniques don't go out of fashion for years. But I've noticed that over the past two years, a lot of designers have focused on dark themes and minimalist shapes. I believe that the simpler the site looks, the easier it is for it to win guests' sympathy. We have such an era when people like to perceive accurate information but in small volumes. Here is a good example of what I said at
weareframework.co.uk. Dark design, simple shapes, and 3D elements - this combination works great.