Animista is a place where you can play with a collection of ready to use CSS animations, tweak them and download only those you will actually use.

WebGradients is a free collection of 180 linear gradients that you can use as content backdrops in any part of your website. Easy copy CSS3 crossbrowser code and use it in a moment! We've also prepared aPNG version of each gradient. As a bonus, there are packs for Sketch & Photoshop.