You want to effectively use something like ease-out as your object shoots up, and like ease-in as it starts falling back down. Example: HTML Program to illustrate the above property values for the animation-timing-function property. The easing function will run forwards for half of the duration, then backwards for the rest of the duration. The animation-composition property helps to specify how to combine the underlying value with the effect value. Notice that both transforms are controlled by the –bounce-distance inside a calc () function and notice that I used a fallback value when calling the custom property. 4 1. If you supply multiple values, each value applies to the corresponding property specified in transition-property. Improve this answer. g. The Web Animations API can inspect animations. I believe most developers think in terms of states:. Controlling easing in CSS animations. the animation’s fill. アニメーションが苦手という方も、 この記事で紹介する6つのポイントを抑えるこ. ease-in. The W3Schools online code editor allows you to edit code and view the result in your browser animation は CSS の一括指定プロパティで、スタイルの間のアニメーションを適用します。これは animation-name, animation-duration, animation-timing-function, animation-delay, animation-iteration-count, animation-direction, animation-fill-mode, animation-play-state の一括指定です。 The W3Schools online code editor allows you to edit code and view the result in your browser Try it. bounce, }); Available functions: back provides a simple animation where the object goes slightly back before moving forward. Unlike CSS animation, we can make any timing function and any drawing function here. In the to, give another animation: @keyframes spin { from { transform: rotate (0deg); } to { transform: rotate (360deg); animation: ease; } } @keyframes ease { } You might need to tackle the iteration count here. css rotation without pausing. The animation-timing-function property specifies the speed curve of the animation. 5s; animation-timing-function: elastic(7, 1. If there are fewer timing functions than properties the. Question: Identify an animation property that repeats the animation being played without stopping. CSS3 animations…The transition-timing-function property, normally used as part of transition shorthand, is used to define a function that describes how a transition will proceed over its duration, allowing a transition to change speed during its course. You use it like this: transition-delay: 1 s ; Code language: CSS (css) To combine it with every else in transition, you just add the delay to the end: transition: left 2 s ease 1 s ; Code language: CSS (css. If no animation-timing-function is specified on a keyframe, the corresponding value of animation-timing-function from the element to which the animation is applied is used for that keyframe. Es decir, se aplica al comienzo del. ease: animation-timing-function: ease; Chuyển động ban đầu sẽ chậm, sau đó nhanh, đến lúc kết thúc sẽ từ từ, đây là dạng mặc định. transition-delay Defines when the transition starts. The animation-timing-function is specified using a cubic bézier curve, which is defined by four control points; P 0, P 1, P 2, and P 3. 伸縮バーでイージングアニメーションを比較; 4. See scroll() for more information. In CSS, we use the animation-timing-function property to apply easing to an element's animation. Without an animation fill mode, the text will reset to its default state at. ease is the animation-timing-function property's こちらはCSSアニメーションのイージングプロパティ（animation-timing-function）で指定可能な値と、比較用の動作サンプル集になります。. It is a shorthand for animation-name, animation-duration, animation-timing-function, animation-delay, animation-iteration-count, animation-direction, animation-fill-mode, animation-play-state, and animation-timeline. 35, 1)One interesting effect can be achieved by setting the timing function to 'ease-in-out' and adding a new property -webkit-animation-direction: alternate;. Example: width 1s linear 1s. image source /* Keyword values */ transition-timing-function: linear; transition-timing-function: ease-in; The linear keyword will set the acceleration pattern to an even speed for the duration of the animation. The animation-timing-function CSS property sets how an animation progresses through the duration of each cycle. Simply changing the ease can adjust the entire feel and personality of your animation. 10. ; ease-in. The ease timing function is so nice, perhaps, because it’s a variant of ease-in-out. GreenSock has a lovely utility method called parseEase. They are all combined into a single transition timing string. With the current setting, the red - blue transition takes 1 second, like you had in your JSFiddle. Animation-delay: Delay between the time the element is loaded and the. This timing function is often used to create animations that appear to build up momentum over time. ease-out - starts quickly, but slows down at the end. Also useful to see the animation short-hand docs to set all the properties at once (like your code does)Conclusion. programmatically in JavaScript. 100 / 300 = 0. Keywords can be used for common functions or the control points for a cubic bezier function can be given. The transition-timing function specifies the time an animation uses to change from one set of CSS transitions to another. animation-play-state = running C. The animation-timing-function property allows us to define the easing on an animation. animation-timing-function: ease-in-out; Like ease, but more pronounced. #fading img. The cubic-bezier () function. animation-play-state - default running. transition-timing-function: step-end; The transition stays at the initial state until the end, when it instantly jumps to the final state. This acceleration curve is defined using one <easing-function> for each property to be transitioned. An ease-in timing function becomes ease-out, for example. 25, 0. A. I want to animate something in After Effects, and I know how to set the animation except for the timing function. I believe you're looking for animation-direction:alternate, but your question is not very clear. See full list on blog. Let’s see more of them. 5. animation-timing-functionの設定方法. This module is used by Animated. 58,1)) step-start: Equivalent to steps(1, start) step-end: Equivalent to steps(1, end) steps(int,start|end) Specifies a stepping function, with two parameters. I have this little image that I want to rotate continuously or at least have a shorter break between animations. The state of the element will not vary gradually. The animation-timing-function CSS property sets how an animation progresses through the duration of each cycle. 42,0. About External Resources. I'm trying to use jquery to bring a constantly rotating div (using CSS animation) to a slow, smooth stop when another div is clicked. 0, 1. If no animation-timing-function is specified on a keyframe, the corresponding value of animation-timing-function from the element to which the animation is applied is used for that keyframe. ease-out. Available values include:The multi-argument constructor (see above) creates a completely new KeyframeEffect object instance. Without easing our animation looks mechanical. animation. css. Q&A for work. ease-in-out. In simple terms, easing refers to the way the animation accelerates and decelerates over time. They even “ease” into each other, as that’s the default animation-timing-function, another good default as it’s a lot smoother and relaxed feeling that than the computer-y feeling linear in general, although everything has it’s use. Ease-based timing functions would create a stop point or jump at the start of the loop cycle. Class. duration: 1, ease: easeArr[i], delay: i * 0. Result: CSS Code: #myDIV { animation-timing-function: ease; } Click the property values above to. ease-out. Description. . The animation shorthand CSS property applies an animation between styles. Default value is 0, which means that no animation will occur: Play it » initial: Sets this property to its default value. transition-timing-function: ease; transition-timing-function: linear; transition-timing-function: step-end; transition-timing-function: steps(4, end); I hope in the future we get more. animation-timing-function (en-US): ease; animation-delay: 0s; animation-iteration-count (en-US): 1; animation-direction: normal; animation-fill-mode: none; animation-play-state (en-US): running; animation-timeline (en-US): auto; 적용대상: all elements: 상속: no: 계산 값: as each of the properties of the shorthand: animation-name (en-US. The syntax for the linear easing function is simply the linear keyword. cubic-bezier() – Accepts as arguments four number values, separated by commas. An example animation would look like this: transition-timing-function: cubic-bezier(0. <head>. Use the linear, ease, ease-in, ease-out, or ease-in-out values to specify a predefined speed curve for the animation. ease-in-out - starts slowly and ends slowly. 25, 0. animation-timing-functionプロパティは、アニメーションが変化する速度を指定します。. animation-iteration-count - default 1. Within a keyframe, animation-timing-function is an at-rule-specific. animation-delay: durasi tunda ebelum animasi kita mulai. In CSS, cubic-bezier is a timing function that defines the acceleration and deceleration of an animation or transition over time. About External Resources. top { animation-name: FadeInOut; animation-timing-function: ease-in-out; animation-iteration-count: infinite; animation-duration: 10s; animation-direction: alternate; } Creating Image Effects Dynamically. When playing in reverse, the animation steps are performed backward. In this example, the slide animation is applied to a div element, causing it to move back and forth horizontally indefinitely with a duration of 2 seconds and an easing timing function. The x coordinates of P1 and P2 are restricted to the range [0, 1]. これは ease-in-out と似ていますが、始めのうちはより急激に加速されます。. ease. thing { /* The default, as in, you get this without defining anything */ transition-timing-function: ease; /* Also the same as */ transition-timing-function: cubic-bezier(0. timing () to convey physically believable motion in animations. For example, here is a slower ease-out timing function: animation-timing-function: cubic-bezier(0, 0, . Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself. 12: Iteration. That's because we've used the ease-out timing function for the horizontal translation and ease-in for the vertical. It is used to make the changes smoothly and create different effects, such as easing in, easing out, or easing in and out. #myDIV { animation-timing-function: ease-in; } animation-timing-function: linear: animation-timing-function: linear; Chuyển động sẽ cùng tốc độ từ lúc bắt đầu tới lúc kết thúc. As the name implies, this enables you to set a delay between when the transition is triggered, and when the animation actually begins. 5). See animation iteration count for more examples. Easing functions may be specified on individual keyframes in a @keyframes rule. . parseEase ('power1. Here is my preview page. zero or one <easing-function> value representing the easing function to use; zero, one, or two <time> values. However, it seems the easing effect is only effective the first time it slides down. Ease Out Spacing: The antithesis of ease in style is ease out spacing. Note that the ease-* values ‘ease’ the animation in various ways. 0). Bring the pieces together. If you applied, say, an ease-in. You may specify multiple easing functions; each one will be applied to the corresponding property as specified by. ease-in-out will animate the property slowly at the beginning, speed up, then slow down at the end. animation-name: falling, laydown; animation-duration: 2000ms, 1000ms; animation-timing-function: ease-in, ease-out; animation-iteration-count: 1, 1; It is playing the second animation, then the first and finally the second one again. 3s ease; } h1:hover { -webkit-transition:all 0. It is usually a keyword, which can be ease, linear, ease-in, ease-out, or ease-in-out. You may specify multiple easing functions; each one will be applied to the corresponding property as specified by. These will be described in huge detail in the animation section. It indicates that the interpolation starts slowly, accelerates sharply, and then slows gradually towards the end. In CSS, we have done that by using the CSS transition-timing-function. This, in essence, lets you establish an acceleration curve so that the speed of the transition can vary over its duration. The value must be positive or zero and the unit is required. Set the 'delay' with an high value on the element (not :hover). The animation-timing-function property. Either an integer representing the animation's duration (in milliseconds), or an object containing one or more of the following: The number of. When you’re happy, snag your code and off you go. 5s 12 backwards; crazy: Animation name. Easing functions specify the rate of change of a parameter over time, allowing you to create more natural animations that mimic real-world motion. Now it's time to bring them both together with the Element. Hello World. The ease part of the styling is explained here. It moves up at 33% and down at 66%. Add the delay after the easing (AKA timing-function) value. 2% } 100% { offset-distance: 100%; opacity: 0; } }3. The animation-timing-function property specifies the speed curve of the animation. To create multiple animations using CSS animations, we can enter all of the properties we want to animate in one @keyframes at-rule and use it in an animation property, as seen in the following code snippet:. animation-delay: Sets a delay between the time the element is loaded and the beginning of the animation. The ease keyword is the default value of the CSS timing-function property, and it is actually quite similar to the previous one, although it eases in at a faster rate before easing out much more gradually. 0% {background-color:red;} } I've tried fiddling around with opacity settings with no luck. For more information about Tailwind's responsive design features, check out the Responsive. With our animation created, we now just need to apply it to our circles. Importantly, the timing function applies to each step. 9, 0. 5s to 1s delay between each bounce, we can do something like: The animation CSS property is a shorthand property for the various animation properties: animation-name, animation-duration, animation-timing-function, animation-delay, animation-iteration-count, animation-direction, animation-fill-mode, and animation-play-state. I love the classic Penner equations with. animation-iteration-count: jumlah penambahan dalam animasi. Hover me. Los @keyframes. This value sets the animation to a slow start then after a time period the speed increases and before it ends the speed again becomes slow. It is only ever a child of ::view-transition, and has a ::view-transition-image-pair as a child. Using built-in CSS animations with Tailwind CSS. CSS Syntax animation-timing-function: linear|ease|ease-in|ease-out|ease-in-out|step-start|step-end|steps (int,start|end)|cubic-bezier ( n, n, n, n )|initial|inherit; The animation-timing-function uses a mathematical function, called the Cubic Bezier curve, to make the speed curve. /* @keyframes duration | timing-function | delay |. A quadratic easing function is created by multiplying a value between 0 and 1 by itself (e. Animation-timing-function The animation-timing-function: defines the speed curve or pace of the animation. 65, 0, 0. Easing Functions. An element with animation-timing-function set to ease-out. . Specify the Speed Curve of the Transition. If no timing function is declared, the transition will default to using the ease function. In anime. animation-timing-function: /specify timing function/; *defines any variation in the speed of the animation. transition-timing-function only supports the keyword initial. Multiple animations. 16. The values the animation-timing-function property accepts are: ease: Starts the animation slowly. timing-function – Sets how the animation moves along the timing “track”, ie ease, ease-in, linear, etc. Timing functions are defined in the separate CSS Easing Functions module [css-easing-1]. The animation-iteration-count property specifies the iteration count of the animation’s associated. The speed curve defines how the animation progresses through the duration of each cycle. 25). In this example, the slide animation is applied to a div element, causing it to move back and forth horizontally indefinitely with a duration of 2 seconds and an easing timing function. Within a keyframe, animation-timing-function is an at-rule. If no timing function is specified for. So, svg width is 48, so I set the transform-origin x value at 24, the center. Other keyword timing functions include ease-in, ease-out, ease-in-out, and linear. . 7, the easing function scales the value to produce an output progress of 0. So, I am not sure about that. 0s; animation-timing-function: ease-out; animation-fill-mode: forwards; } Worked perfectly! Not sure why there was a flicker if there was a delay but I'm glad this worked!Transition Timing Function Options. This example makes a sequence of two ease-in and ease-out transitions resemble the behavior of a single ease-in-out function:animation-timing-function动画播放方式，默认值ease，可以设linear，ease，ease-in，ease-out，ease-in-out，cubic-bezier(n,n,n,n)，steps。关于贝塞尔曲线和steps可以参照上一篇transition，和transition-timing-function类似，不多赘述。 animation-delay延迟开始动画的时间，默认值是0，表示不. The transition-timing-function property can have the following values: ease - specifies a transition effect with a slow start, then fast, then end slowly (this is default); linear - specifies a transition effect with the same speed from start. In other words, the timing function is applied at the start of. Timing functions can also be specified as part of the transition shorthand property. Learn more about TeamsThe animation's timeline is the document's default DocumentTimeline. animation-timing-function: linear (0, 0. The acceleration and deceleration of transitions is controlled using the transition-timing-function property. Made by Lea Verou with care About Donate. You can also choose from many preloaded easing functions by simply selecting them from a select box, choose the duration and then click the effect buttons (left, width, height. Sorted by: 2. 8, . Think how nice it would be to have a simple elastic function that accepts these three arguments and produces a clean and beautiful elastic ease, like so:. For example, a linear easing means that an animation runs at the same speed throughout its duration. animation-timing-function: steps (4, end); By using steps () with an integer, you can define a specific number of steps before reaching the end. com, amending the ease-out curve as you see fit. Profile or Media card. This, in essence, lets you establish an acceleration curve so that the speed of the transition can vary over its duration. Feb 7, 2016 at 13:12. ease-in-out. ease-out. 5*0. These two timing-functions are symmetrical. First, you have to select 4 coordinates for constructing the cubic Bezier starting and ending points. CSS Easing / Cubic-Bezier Function Generator is a free online tool for web developers that lets you build custom easing timing functions for transitions and animations. If no timing function is specified for. The. You don’t have to use a single easing for both directions of an animation, you can switch it up; You can change duration also;Home; CSS; CSS Animations; Tryit: Using the animation-timing-function propertyResponsive. The values the. Combined animations-- EXAMPLE HERE. Using those custom-easing functions in the animations can lead to an improved impression on users and a more delightful user. transition-duration accepts time units, either in seconds (s) or milliseconds (ms) and defaults to 0s. transition. Easing functions may be specified on individual keyframes in a @keyframes rule. Timing function to specify a specific speed curve for the transition. ease-out. If you don’t quite like the easing, grab a handle and fix it. The animation-timing-function CSS property sets how an animation progresses through the duration of each cycle. ease. Equal to cubic-bezier(0. The first SVG animation we’ll create is a rotating loader, like the ones we usually see on the loading screens of applications. ease-in. Note: animation-range-start is included. The transition stays at the initial state until the end, when it instantly jumps to the final state. Specifies the length of time an animation should take to complete one cycle. I have an animation in CSS that spins an image around its centre. js offers a long list of built-in easing functions such as 'linear', 'easeInQuad', and 'easeOutQuad'. ease-inease-out - specifies an animation with a slow end ease-in-out - specifies an animation with a slow start and end cubic-bezier(n,n,n,n) - lets you define your own values in a cubic-bezier function The following example shows the some of the different speed curves that can be used: Example #div1 {animation-timing-function: linear;} #div2. The ease timing function is the default of any transition in CSS. In other words, the animation-timing-function property specifies the speed for implementing the animation at various intervals of its duration. 5s] [animation-timing-function:_linear] I think it's a little odd that Tailwind CSS doesn't include this but here we go. . A few of the more popular keyword values for the transition-timing-function property include linear, ease-in, ease-out, and ease-in. This makes the beginning and ending of each animation a little slower than the middle part, which adds a more natural look to some animations. To have more control over the animation paths and timing, you can set up WebKit Keyframes. It wouldn't move at the same speed the whole time: it would probably accelerate rapidly to its maximum velocity, before gradually slowing down and coming to a stop (known as cubic-bezier easing). ease-in. answered Aug 11, 2016 at 12:06. Values like ease, linear, and ease-in-out modify the timing behavior, allowing you to achieve smooth, snappy, or custom easing effects. 5k 12 73 77. 1. Check that out: we started with a seemingly basic set of @keyframes and turned it into a full-fledged system for applying interesting animations for elements entering into view. animation-timing-function : xác định tốc độ chuyển động của một animation sẽ như thế nào. animation-fill-mode - you need to set this to forwards. Honestly, this feels right to me. A timing function that produces a gradual starting and ending transition. 補間がゆっくり始まり、急激に加速し、終わりに向かって徐々に遅くなることを示します。. The order of time values is important. Suppose an element has a timing function of ease-in; it means it starts slow and finishes fast. 1. Try it. 8) but the effect has an out-of-range value. but the cubic bezier curves associated with these two keywords are not exactly parabolas. Quadratic easing functions. This tiny demo is trying to slide up/down a div with the ease-in timing/easing function. andreas. Linear transitions work well for simple animations, while ease-in-out is best for. The cubic-bezier function allows you to create non-linear animations by. A Cubic Bezier curve is defined by four points P0, P1, P2, and P3. on mouse hover. 目次. You may specify multiple easing functions; each one will be applied to the corresponding property as specified by. animation-timing-functionの設定方法 2. transition-timing-function. The animation-timing-function CSS property specifies the speed curve of an animation. The animation-range-start CSS property is used to set the start of an animation's attachment range along its timeline, i. Within a keyframe, animation-timing-function is an at-rule-specific. This keyframe will be referenced later using the assigned name 'travel' and applied using a linear transition timing function that changes direction with each iteration. How can I get it to play the first, then second? Here is the full code:Easing functions may be specified on individual keyframes in a @keyframes rule. Easing functions can change the look and feel of an animation by affecting the rate, or speed, of an animation. This means that if an element isn’t moving at first and then starts to move, it will do so instantly, as if it didn’t even need to accelerate. The animation timing function ease will cause the animation to start slow at 0 -> speed up -> slow down to -10px -> speed up -> slow down to 0. 5) // === 0. value, {. The right kind of easing is crucial for making animations look natural and life-like. The animation-timing-function CSS property sets how an animation progresses through the duration of each cycle. Result: CSS Code: #myDIV { animation-timing-function: ease-in-out; } Click the property values above to see the result. . ease-in-out. At the moment, CSS3 transitions are supported in Safari 3. By manipulating these animation properties, you can fine-tune the duration, delay, iteration. I can get a custom easing function as a function (as numbers), but I don't know how to convert named easing functions such as ease-in into numbers. The transition-timing-function property specifies the speed of the transition throughout the element’s duration. It defines the total duration of a transition from state A to state B, whether the transition involves scaling, distorting, rotating or modifying the style of an element. No added library like GSAP or Velocity. The ease part of the styling is explained here. The Easing module implements common easing functions. Example: animation keyframes range from 0% – 25% – 75% – 100%, and use ease-in-out as the timing function. 0) を表します。. The animation-timing-function property can have the following values: ease - Specifies an animation with a slow start, then fast, then end slowly (this is default) linear - Specifies an animation with the same speed from start to end; ease-in - Specifies an. It can assume the following values: ease - (default) starts slowly, then becomes faster, and ends slowly. animate-end { animation-iteration-count: 3; animation-duration: 1s;. animation-timing-function: step-end; The animation stays at the initial state until the end, when it instantly jumps to the final state. animation-timing-function: establishes preset acceleration curves such as ease or linear. Within a keyframe, animation-timing-function is an at-rule. If you supply multiple values, each value applies to the corresponding property specified in transition-property. This acceleration curve is defined using one <easing-function> for each property to be transitioned. Use appropriate timing functions: Choose the timing function that matches the desired effect of the transition. Subscribe. 9s;About External Resources. But the big takeaway for me is how the examples we looked at form a complete system that can be used to create a. CSS transitions and transforms are a powerful way to enhance and delight user experiences. The steps() easing function lets you break the timeline into defined, equal intervals. Controlling easing in CSS animations. const ease = gsap. Each of them has an effect property, and in your case, they are all of the type KeyframeEffect. the type of animation: CSS transition, CSS animation, or Web Animations API. The class specifies the animation duration in milliseconds, and the class indicates that the Y position of the element should be animated using a translation transformation. Animation Timing Functions. This style places the frames farther apart at the beginning of the animation and closer together at the conclusion. However, it seems the easing effect is only effective the first time it slides down. animation-timing-function: <value>; where <value> can be one of the following keywords: step-start: The easing curve for an animation that starts quickly. g. Use the animation-timing-function property in conjunction with the animation property to specify the timing of an animation. Result: CSS Code: #myDIV { animation-timing-function: ease-in; } Click the property values above to see the result. transition: transform 500ms ease-in-out; } In the above example, the browser will react to any changes in transform for the circle. The animation-timing-function CSS property sets how an animation progresses through the duration of each cycle. animation-timing-function: Specifies the timing of the animation; or how it ‘flows’ through the keyframes. 5s: Delay. When you’re happy, snag your code and off you go. The advantage of this approach is that you can change the duration and timing-function which can be nice for easing out some animation (Like a rotating logo for example). In the last CSS styles of the keyframe, the transform is set to rotate on the X-axis at a zero-degree angle. animation-timing-function — the timing function used by the animation (common values: linear, ease). We want the crossfade animation to be quick and more subtle, and the more elaborate image animation to be more noticeable and have a nice custom easing function: /* Speed up crossfade animations. You can define a duration in three ways:Lastly, we need to add our animation to the progress bar element, with our keyframe animation as the animation-name. Properties. 1. alternate. Result: CSS Code: #myDIV { animation-timing-function: ease-out; } Click the property values above to see the result. Animation Timing. For example, if we wanted to animate a bouncing ball, and we wanted a good . By using steps () with an integer, you can define a specific number of steps before reaching the end. 8 0. The accepted strings are the GreenSock easing functions. Within a keyframe, animation-timing-function is an at-rule. Just like other CSS properties and modules. Simply add the animation-delay property to your code: . CSS:Transition Timing. ease-out - starts quickly, but slows down at the end. This, in essence, lets you establish an acceleration curve so that the speed of the transition can vary over its duration. This makes the beginning and ending of each animation a little slower than the middle part, which adds a more natural look to some animations. Result: CSS Code: #myDIV { animation-timing-function: ease; } Click the property values above to see the result. 5s; animation-timing-function: ease-in-out; transform-origin: 24px 10px; animation-fill-mode: forwards. The count to determinate if it is an even or an odd iteration starts at one. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself. but the cubic bezier curves associated with these two keywords are not exactly parabolas. animation-duration: value; Note: if you don't define the duration for the animation, it will not run at all, as the default value is 0s. Easing functions may be specified on individual keyframes in a @keyframes rule. In between each stop the interpolation is done in a linear way, explaining the name of the function. 4s: Duration. CSS Easing / Cubic-Bezier Function Generator is a free online tool for web developers that lets you build custom easing timing functions for transitions and animations. Jul 7, 2023For keyframed animations, the timing function applies between keyframes rather than over the entire animation. Try it. The animation shorthand CSS property applies an animation between styles. animation-timing-function is never used in Method 2 and Method 3. This will mean when the user rolls over that the arrow will rotate smoothly in and then out on roll off. . 2 Answers. You can’t use this. When a preset timing function doesn't fit the animation. Each stop is a single number that ranges from 0 to 1. ease-in-out - starts slowly and ends slowly.