CSS transition-timing-function Property Last Updated : 02 Jul, 2024 Comments Improve Suggest changes Like Article Like Report The transition-timing-function property specifies the speed curve of the transition effect. It determines how CSS properties change values over time during transitions. This curve, or easing function, defines the rate of change, influencing the smoothness and perception of animation transitions on web elements.Syntaxanimation-timing-function: <easing-function>|ease|linear|ease-in |ease-out|ease-in-out|cubic-bezier(p1, p2, p3, p4)|steps(n, <jumpterm>) |step-start|step-end|initial;There are many different values that we can give to this property, some of them are:ValueDescriptionlinearAnimation progresses at a constant speed.ease-inAnimation starts slowly and speeds up at the end.ease-outAnimation starts quickly and slows down at the end.initialSets the property to its default value (ease).Example: In this example we demonstrates the transition-timing-function property with different values: linear, ease, ease-in, and ease-out. Each div expands its width from 75px to 300px over 5 seconds when hovered, showcasing different transition speeds html <!DOCTYPE html> <html> <head> <title>CSS transition-timing-function Property</title> <style> div { height: 75px; width: 75px; background: yellowgreen; color: red; transition: width 5s; } #div1 { transition-timing-function: linear; } #div2 { transition-timing-function: ease; } #div3 { transition-timing-function: ease-in; } #div4 { transition-timing-function: ease-out; } div:hover { width: 300px; } </style> </head> <body> <h1>The transition-timing-function Property.</h1> <p> This is an example for the linear value in the transition-timing-function property. </p> <div id="div1">linear</div> <p> This is an example for the ease value in the transition-timing-function property. </p> <div id="div2">ease</div> <p> This is an example for the ease-in value in the transition-timing-function property. </p> <div id="div3">ease-in</div> <p> This is an example for the ease-out value in the transition-timing-function property. </p> <div id="div4">ease-out</div> </body> </html> Output: Supported Browsers:Google Chrome 5.0Edge 12 Mozilla 4.0 Safari 5.0 Opera 11.1 Comment More infoAdvertise with us R riteshparkhi9 Follow Improve Article Tags : Web Technologies CSS CSS-Properties Similar Reads CSS Tutorial CSS stands for Cascading Style Sheets. 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