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CSS Animation Playground

Build complex CSS keyframe animations visually with real-time preview. Customize timing functions, transforms, opacity, colors, and more. Export clean, production-ready CSS code.

Live Preview

Box
Controls element style before/after animation.
Keyframe 0%
cubic-bezier(0.25, 0.10, 0.25, 1.00)

Generated CSS


            

            
HTML Usage

            

                
                

            

        


        
        

            
            

                
Keyboard Shortcuts

                

                    Ctrl+Enter Play animation

                    Ctrl+Shift+C Copy CSS

                    Ctrl+L Reset
                

            

        


        
        

            
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How to Use the CSS Animation Playground

            
This interactive playground lets you build CSS keyframe animations without writing code by hand. Start by selecting a preset animation or build one from scratch using the Keyframes tab. Adjust timing, easing, and direction in the Timing tab, and use the Bezier tab for custom easing curves.


            
Building Custom Animations

            
Switch to the Keyframes tab and click on keyframe markers in the timeline to edit their properties. Each keyframe can have its own transform values (translate, rotate, scale), opacity, background color, and border radius. Add new keyframes at any percentage to create multi-step animations with precise control.


            
Choosing the Right Easing

            
Easing functions control the pace of your animation. Use ease-in for elements entering the viewport, ease-out for exits, and ease-in-out for looping animations. For bouncy or spring-like effects, use the Bezier tab to craft custom cubic-bezier curves that overshoots or anticipates.


            
Performance Best Practices

            
The playground generates animations using transform and opacity, the two CSS properties that are GPU-accelerated and don't trigger layout or paint. This means the exported animations will run at 60fps on most devices. Avoid adding too many simultaneous animations to a single page for best results.

        

    


    
    

        
Frequently Asked Questions

        

            What is the difference between CSS transitions and CSS animations?▼
            
CSS transitions animate property changes between two states triggered by events like hover or focus. CSS animations use @keyframes to define multiple stages and can run automatically, loop infinitely, and animate through complex sequences without requiring a trigger. Animations offer more control with properties like animation-direction, animation-fill-mode, and the ability to define any number of intermediate steps.

        

        

            How do CSS @keyframes work?▼
            
CSS @keyframes define the stages of an animation using percentage-based stops from 0% (start) to 100% (end). Each stop specifies CSS property values at that point in the animation timeline. The browser smoothly interpolates between these stops. You can use any number of stops, and "from" and "to" are aliases for 0% and 100% respectively.

        

        

            What CSS properties can be animated for best performance?▼
            
For optimal performance, animate transform (translate, rotate, scale) and opacity, as these are handled by the GPU compositor and don't trigger layout or paint. Avoid animating width, height, top, left, margin, or padding, which force expensive layout recalculations. The will-change property can hint to browsers about upcoming animations, but use it sparingly.

        

        

            How do I create smooth looping CSS animations?▼
            
For smooth loops, set animation-iteration-count to infinite and ensure the 100% keyframe matches the 0% keyframe for seamless transitions. Alternatively, use animation-direction: alternate to play the animation forwards then backwards. Choose timing functions like ease-in-out for natural-feeling loops. Avoid abrupt property changes between the last and first keyframe.

        

    


    
    

        
Embed this Tool

        
Copy and paste this code to embed the CSS Animation Playground on your website:

        

            
            <iframe src="https://devtoolbox.dedyn.io/tools/css-animation-playground" width="100%" height="800" frameborder="0"></iframe>
        

    


    
    

        
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