Apple deciding to abandon the 3D skeumorphic style with iOS 7 (2013) established still running and evolving trend.
In recent years we’ve seen a move from muted colours to a more saturated palette.
Modular or card-based layouts have been adopted by some of the biggest brands for their websites and mobile apps.
In contrast to the more excessive,
80's inspired styles, a rebellious, minimalist trend is evolving.
In 2014 Google created its styleguide about Material Design which specified animation, style, layout, patterns and usabilty.
Know them and play with them wisely.