Change the keyframes value of css with jQuery

Question

Is there any way to change the values of @keyframes (CSS) with jQuery

To make it a little bit more clear, I have this in my css file:

@keyframes bg {
  50% { background: #3b99fcff; }
}

.pie::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  width: 50%; height: 100%;
  border-radius: 0 100% 100% 0 / 50%;
  background-color: inherit;
  transform-origin: left;
  animation: spin 50s linear infinite,
             bg 100s step-end infinite;
  animation-play-state: paused;
  animation-delay: inherit;
}

I would like to change the 'background' with Jquery

https://stackoverflow.com/questions/5105530/programmatically-changing-webkit-transformation-values-in-animation-rules — Sangram Nandkhile, Jul 06 '18 at 00:17

score 2 · Accepted Answer · answered Jul 06 '18 at 00:16

2

You could use a CSS variable and change that:

setTimeout(() => {
  console.log("changing");
  document.getElementById("fizz").style.setProperty("--foo", "green");
}, 2000);

:root {
  --foo: blue;
}

@keyframes hello {
  from {
    background-color: yellow;
  }
  to {
    background-color: var(--foo);
  }
}

#fizz {
  height: 1em;
  animation: 1s infinite alternate hello;
}

<div id="fizz">
  <div>

answered Jul 06 '18 at 00:16

zero298

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What about IE? it will fail here ;) – Temani Afif Jul 06 '18 at 00:34
Hi @zero298. This is working! well almost. I tested in Firefox and Chrome but only works on Firefox – Ricardo Jul 11 '18 at 21:07

Change the keyframes value of css with jQuery

1 Answers1