Multi-layer depth effects with CSS transforms
Parallax scrolling is a web design technique where background images move at a different speed than foreground content, creating an illusion of depth and immersion as you scroll through the page.
background-attachment: fixed - Simple fixed background effecttransform: translateZ() - True 3D parallax with perspectivetransform: translateY() - JavaScript-controlled smooth parallaxMultiple layers moving at different speeds create a sense of 3D depth and dimension.
Dynamic movement captures attention and makes scrolling more engaging.
CSS-only solutions ensure smooth performance without heavy JavaScript.
The key to effective parallax is using multiple layers that move at different speeds. Slower-moving backgrounds appear farther away, while faster-moving foreground elements appear closer to the viewer.
The slowest moving layer, creating the illusion of distance and depth in the scene.
Medium speed movement provides transition between background and foreground.
Fastest movement creates the closest visual plane and draws immediate attention.
Use CSS transforms instead of position properties for better performance and smoother animations.
Consider disabling or simplifying parallax on mobile devices for better user experience.
Respect prefers-reduced-motion for users who prefer less animation and movement.
Keep parallax effects subtle and purposeful - too much movement can be distracting.
Maintain clear visual hierarchy with proper z-index and transform values for each layer.
Use high-quality images that look good at different scroll positions and scales.
Experiment with different parallax techniques to find what works best for your project. Combine multiple approaches for unique effects!