The Science Behind CSS Gradients
CSS gradients are not images; they are generated algorithmically by the browser's engine. This means they are infinitely scalable and have zero impact on your website's Largest Contentful Paint (LCP).
Linear vs. Radial vs. Conic
- Linear: Colors transition along a straight line. Best for headers and full-page backgrounds.
- Radial: Colors radiate from a central point. Ideal for creating spotlight effects or circular UI elements.
- Conic: Colors rotate around a center point. Essential for building CSS-only pie charts, loading wheels, and sophisticated border animations.
Optimization Pro Tip
Always use background-image instead of background-color when applying gradients. To ensure maximum performance, avoid using more than 5 color stops on a single element, as complex calculations can sometimes impact the browser's paint cycle on low-end mobile devices.