Hello Readers, today in this blog we listed the hand-picked awesome Background Animation Effects using just HTML, CSS and JavaScript. This tutorial assumes you have basic knowledge of HTML, CSS and JavaScript. These animated backgrounds are great when used as a site introduction, functional hover navigation elements, and other creative ways to attract interest and draw users in. some of the Background Animation effects are having beautiful animation effects using transitions. These CSS Background Animation Effects are designed in a completely modern way.
You easily build all these CSS Background Animation Effects by just following the code or these steps which I am given below.
1. CSS Linear Gradient Animation
Animating a stack of linear-gradients.

Author: Ryan Mulligan
Links: Source Code – Demo
Created on: November 6, 2020
Made with: HTML, CSS
2. Bubble Float

Author: alphardex
Links: Source Code – Demo
Created on: June 16, 2020
Made with: HTML / CSS (SCSS)
3. Animated Ripples Background

Author: Vaibhav Arora
Links: Source Code – Demo
Created on: January 1, 2019
Made with: HAML / CSS
4. Falling Leaves CSS Animation
October falling leaves CSS animation CSS no JavaScript.

Author: Casthra Demosthene
Links: Source Code – Demo
Created on: October 2, 2019
Made with: HTML / CSS
5. Long shadow Background Animation

Author: Mladen Stanojevic
Links: Source Code – Demo
Created on: November 24, 2019
Made with: HTML / CSS / JS
6. Pure Css Animated Background
Pure Css Animated Background Down to upside!!!

Author: Mohammad Abdul Mohaiman
Links: Source Code – Demo
Created on: February 25, 2018
Made with: HTML / CSS / JS
7. Shooting Star

Author: alphardex
Links: Source Code – Demo
Created on: June 23, 2020
Made with: HTML / CSS (SCSS)
8. Rainbow lines of straightness

Author: Matei Copot
Links: Source Code – Demo
Created on: October 4, 2018
Made with: HTML / CSS / JS
9. Pure CSS Particle Animation

Author: Takeshi Kano
Links: Source Code – Demo
Created on: September 21, 2018
Made with: PUG / SCSS
10. Pure Css Infinite Background Animation

Author: kootoopas
Links: Source Code – Demo
Created on: December 4, 2013
Made with: SCSS
11. CSS Fireflies Background Animation
An elegant HTML/CSS only solution for adding a tranquil fireflies effect to you page.

Author: Mike Golus
Links: Source Code – Demo
Created on: December 6, 2018
Made with: PUG / SASS / JS
12. Stripe Warning background Animation

Author: Yusuke Nakaya
Links: Source Code – Demo
Created on: May 17, 2019
Made with: HTML (Pug) / CSS (SCSS)
13. Pure CSS Twinkling Stars Background
Subtle twinkling stars and moving clouds animation using only CSS.

Author: Anastasia Goodwin
Links: Source Code – Demo
Created on: May 22, 2018
Made with: HTML / CSS
14. Cool Mountain Background Animation
Cool mountain background with animations – slightly responsive.

Author: Igor Milenkovic
Links: Source Code – Demo
Created on: February 15, 2019
Made with: HTML / CSS (Less)
15. Animated Ripples Background

Author: Vaibhav Arora
Links: Source Code – Demo
Created on: January 1, 2019
Made with: HTML (Haml) / CSS
16. Infinite SVG Triangle Fusion

Author: Rob DiMarzo
Links: Source Code – Demo
Created on: December 16, 2018
Made with: HTML (Pug) / CSS (SCSS)
17. Sliding Diagonals Background Effect
An animated background under the content.

Author: Chris Smith
Links: Source Code – Demo
Created on: August 4, 2017
Made with: HTML / CSS
18. Pure CSS3 Gradient Background Animation

Author: Manuel Pinto
Links: Source Code – Demo
Created on: May 13, 2016
Made with: HTML / CSS
19. CSS Background Animation
Example of background animation using CSS.

Author: Sépion
Links: Source Code – Demo
Created on: January 13, 2016
Made with: HTML / CSS
20. Color Drops Animation
Tryin to create a canvas-like trail effect in CSS using gradients.

Author: Nate Wiley
Links: Source Code – Demo
Created on: January 11, 2015
Made with: HTML (Haml) / CSS (SCSS)
21. Animated Background

Author: Chandan Choudhary
Links: Source Code – Demo
Created on: May 17, 2016
Made with: HTML / CSS
22. Pure CSS Twinking Stars Background
Subtle twinkling stars and moving clouds animation using only CSS.

Author: Anastasia Goodwin
Links: Source Code – Demo
Created on: May 22, 2018
Made with: HTML / CSS (SCSS)
23. Animated CSS Mask-Image Gradient

Author: Chris Neale
Links: Source Code – Demo
Created on: December 9, 2018
Made with: HTML / CSS (SCSS) / JS (Babel)
24. Pattern Animation Background
Used Flexbox to vertically and horizontally center text. Used keyframes
to set an infinite scroll.

Author: Adam Abundis
Links: Source Code – Demo
Created on: September 27, 2019
Made with: HTML / CSS
25. Pure CSS Background with Cloud Effect

Author: Valentin Radulescu
Links: Source Code – Demo
Created on: May 5, 2019
Made with: HTML / CSS