Understanding transition-timing-function in CSS
The transition-timing-function property in CSS defines how the speed of a transition changes over its duration. It controls the acceleration curve, making the transition feel more natural or mechanical depending on the chosen value.
ease— starts slow, speeds up, then slows down at the end (default).linear— maintains a constant speed from start to finish.ease-in— starts slow and speeds up toward the end.ease-out— starts fast and slows down at the end.ease-in-out— starts and ends slow, with faster movement in the middle.
Each timing function affects how the element moves during the transition, influencing the visual feel of the animation.
For complete control, you can define a custom curve using cubic-bezier(x1, y1, x2, y2). This allows fine-tuning of the acceleration pattern beyond the preset options.
transition-timing-functioncontrols the pacing of animations.Common values include
ease,linear,ease-in,ease-out, andease-in-out.Use
cubic-bezier()for custom timing effects that match your design style.