These semi-transparent rotating squares float up the screen.

Time to add some objects into the mix! Here's a cool moving background (CSS only, believe it or not) by TokyoWeb. This is one of the easiest ways to make a moving background in CSS. Now let's take it up a notch - instead of a single color fading into another, you can add an extra touch of class with a gradient, pleasantly sweeping back and forth across the screen. Simple, easy to implement, and effective. A simple color fades - you can use to fade the background between as many colors as you need and use the percentages to determine how long the animation will stay on that color before changing. So, here are 20 great animated backgrounds you can use in your projects, or draw inspiration from! Ideal for hero slider websites. Now you can even create a video background just with CSS!! Who would have told us that 15 years ago, huh? And because CSS has gotten so powerful, you can create some great-looking CSS background effects without needing a single line of JavaScript. You can use a CSS background animation to help your site stand out from the crowd, emphasize your branding, or simply look awesome.

4k animated background