How to reverse an animation on mouse out after hover

Question

So  it is possible to have reverse animation on mouse out such as    class     transform  rotate 0deg       class hover     transform  rotate 360deg       but  when using  keyframes animation  I couldn t get it to work  e g    class     animation-name  out     animation-duration 2s      class hover     animation-name  in     animation-duration 5s     animation-iteration-count infinite      keyframe in      to  transform  rotate 360deg        keyframe out      to  transform  rotate 0deg        What is the optimal solution  knowing that I d need iterations and animation itself   http   jsfiddle net khalednabil eWzBm

User · Answer

Would you be better off having just the one animation  but having it reverse   animation-direction  reverse

User · Answer

we can use requestAnimationFrame to reset animation and reverse it when browser paints in next frame   Also use onmouseenter and onmouseout event handlers to reverse animation direction  As per     Any rAFs queued in your event handlers will be executed in the  same   frame   Any rAFs queued in a rAF will be executed in the next frame      x000D   x000D  function fn el  isEnter    x000D    el className       x000D     requestAnimationFrame      gt    x000D      requestAnimationFrame      gt    x000D          el className   isEnter   in    out   x000D          x000D          x000D    x000D   in  x000D    animation  k 1s forwards  x000D    x000D   x000D   out  x000D    animation  k 1s forwards  x000D    animation-direction  reverse  x000D    x000D   x000D   keyframes k x000D    x000D  from  transform  rotate 0deg    x000D  to    transform  rotate 360deg    x000D    x000D   lt div style  width 100px  height 100px  background-color red   x000D    onmouseenter  fn this  true   x000D     onmouseleave  fn this  false     x000D        gt  lt  div gt  x000D   x000D   x000D

User · Answer

creating a reversed animation is kinda an overkill to a simple problem  what u need is   animation-direction  reverse   however this wont work on its own because animation spec is so dump that they forgot to add a way to restart the animation so here is how you do it with the help of js   x000D   x000D  let item   document querySelector   item   x000D   x000D     play normal x000D  item addEventListener  mouseover        gt    x000D    item classList add  active   x000D     x000D   x000D     play in reverse x000D  item addEventListener  mouseout        gt    x000D    item style opacity   0    avoid showing the init style while switching the  active  class x000D   x000D    item classList add  in-active   x000D    item classList remove  active   x000D   x000D       force dom update x000D    setTimeout      gt    x000D      item classList add  active   x000D      item style opacity      x000D       5  x000D   x000D    item addEventListener  animationend   onanimationend  x000D     x000D   x000D  function onanimationend     x000D    item classList remove  active    in-active   x000D    item removeEventListener  animationend   onanimationend  x000D    x000D   keyframes spin   x000D    0    x000D      transform  rotateY 0deg   x000D      x000D    100    x000D      transform  rotateY 180deg   x000D      x000D    x000D   x000D  div   x000D    background  black  x000D    padding  1rem  x000D    display  inline-block  x000D    x000D   x000D   item   x000D       because span cant be animated    x000D    display  block  x000D    color  yellow  x000D    font-size  2rem  x000D    x000D   x000D   item active   x000D    animation  spin 1s forwards  x000D    animation-timing-function  ease-in-out  x000D    x000D   x000D   item in-active   x000D    animation-direction  reverse  x000D    x000D   lt div gt  x000D     lt span class  item  gt ABC lt  span gt  x000D   lt  div gt  x000D   x000D   x000D

User · Answer

I don t think this is achievable using only CSS animations   I am assuming that CSS transitions do not fulfil your use case  because  for example  you want to chain two animations together  use multiple stops  iterations  or in some other way exploit the additional power animations grant you   I ve not found any way to trigger a CSS animation specifically on mouse-out without using JavaScript to attach  over  and  out  classes  Although you can use the base CSS declaration trigger an animation when the  hover ends  that same animation will then run on page load   Using  over  and  out  classes you can split the definition into the base  load  declaration and the two animation-trigger declarations   The CSS for this solution would be    class          base element declaration       class out      animation-name  out     animation-duration 2s      class over      animation-name  in     animation-duration 5s     animation-iteration-count infinite     keyframes in       from           transform  rotate 0deg             to           transform  rotate 360deg            keyframes out       from           transform  rotate 360deg             to           transform  rotate 0deg             And using JavaScript  jQuery syntax  to bind the classes to the events       class   hover      function                this  removeClass  out   addClass  over               function                this  removeClass  over   addClass  out

User · Answer

I think that if you have a to  you must use a from  I would think of something like     keyframe in       from  transform  rotate 0deg       to  transform  rotate 360deg       keyframe out       from  transform  rotate 360deg       to  transform  rotate 0deg       Of course must have checked it already  but I found strange that you only use the transform property since CSS3 is not fully implemented everywhere  Maybe it would work better with the following considerations     Chrome uses  -webkit-keyframes  no particuliar version needed Safari uses  -webkit-keyframes since version 5  Firefox uses  keyframes since version 16  v5-15 used  -moz-keyframes  Opera uses  -webkit-keyframes version 15-22  only v12 used  -o-keyframes  Internet Explorer uses  keyframes since version 10    EDIT    I came up with that fiddle    http   jsfiddle net JjHNG 35   Using minimal code  Is it approaching what you were expecting

User · Answer

lol  it has a very easy solution with CSS only  Here you go   thing      padding  10px     border-radius  5px     HOVER OFF       -webkit-transition  padding 2s     thing hover      padding  20px     border-radius  15px     HOVER ON       -webkit-transition  border-radius 2s

User · Answer

Have tried several solutions here  nothing worked flawlessly  then Searched the web a bit more  to find GSAP at https   greensock com   subject to license  but it s pretty permissive   once you reference the lib        lt script src  https   cdnjs cloudflare com ajax libs gsap 3 2 4 gsap min js  gt  lt  script gt        you can go     var el   document getElementById  divID              create a timeline for this element in paused state   var tl   new TimelineMax  paused  true          create your tween of the timeline in a variable   tl    set el  willChange  transform       to el  1   transform  rotate 60deg    ease Power1 easeInOut          store the tween timeline in the javascript DOM node   el animation   tl       create the event handler     el  on  mouseenter  function          this style willChange    transform       this animation play         on  mouseleave  function           this style willChange    auto       this animation reverse            And it will work flawlessly

User · Answer

Try this    keyframe in   from       transform  rotate 0deg         to       transform  rotate 360deg          keyframe out   from       transform  rotate 360deg         to       transform  rotate 0deg           supported in Firefox 5   IE 10   Chrome  Safari 4   Opera 12

User · Answer

Using transform in combination with transition works flawlessly for me   ani-grow       -webkit-transition  all 0 5s ease       -moz-transition  all 0 5s ease       -o-transition  all 0 5s ease       -ms-transition  all 0 5s ease       transition  all 0 5s ease      ani-grow hover       transform  scale 1 01

User · Answer

Its much easier than all this   Simply transition the same property on your element    earth   width   0 92      transition  width 1s      earth hover   width  50   transition  width 1s       https   codepen io lafland pen MoEaoG

[css] How to reverse an animation on mouse out after hover

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