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QuickTip: Animate CSS Variables


| GreenSock
17718

When you animate the value of a CSS variable you can affect any element that uses that variable in any of its styles. Instead of having a DOM element as the target of your tween, you will use the rule that defines your CSS variable. Check out the video and demo below to see exactly how it works.

Video

Code

CSS

html {
  --myColor: green;
}

.wrapper {
  border: 1px solid var(--myColor);
  border-radius: 10px;
  margin-right:10px;
}

 h2, strong {
  color:var(--myColor);
}

.cool {
  display:inline-block;
  padding:10px;
  color:white;
  border-radius:8px;
  background-color:var(--myColor);
}

JavaScript

gsap.to("html", {"--myColor": "orange", duration: 1, yoyo: true, repeat: 20});

Demo

Support for CSS variables was added in GSAP 1.20.0

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