How can you animate CSS property changes over time without JavaScript?

How can you animate CSS property changes over time without JavaScript?

• A. CSS Transitions
• B. CSS Animations with Keyframes
• C. Use CSS Transitions or CSS Animations with Keyframes
• D. JavaScript-Based Animation

Answer: (C)

Animating CSS property changes over time without JavaScript is achieved with CSS Transitions for simple state changes and CSS Animations with Keyframes for more complex sequences. Transitions interpolate a property value smoothly when it changes—triggered by events like hover, focus, or a class change—and you control the duration, timing function, and which property to animate. For more elaborate or repeated effects, define @keyframes to lay out multiple steps and then apply them with animation-name, duration, timing, and iteration count. Together, these CSS-only techniques cover the common needs for animating property changes without any JavaScript, which is why this combined approach is the best fit. JavaScript-based animation would go beyond CSS-only capabilities and isn’t required here.

Animating CSS property changes over time without JavaScript is achieved with CSS Transitions for simple state changes and CSS Animations with Keyframes for more complex sequences. Transitions interpolate a property value smoothly when it changes—triggered by events like hover, focus, or a class change—and you control the duration, timing function, and which property to animate. For more elaborate or repeated effects, define @keyframes to lay out multiple steps and then apply them with animation-name, duration, timing, and iteration count. Together, these CSS-only techniques cover the common needs for animating property changes without any JavaScript, which is why this combined approach is the best fit. JavaScript-based animation would go beyond CSS-only capabilities and isn’t required here.