Use different @keyframes based on parent element class

Question

I have an animation like below:

@keyframes pulseColorGreen {
    0% {
        background-color: green;
    }
    97%{
        background-color: green;
    }
         


        

Answer 1

You can use CSS variable and you will need only one keyframes that you don't have to change. Simply change the main class that define the color:

.light {
  --c: yellow;
}

.dark {
  --c: darkblue;
}

.box {
  height: 100px;
  margin: 5px;
  box-shadow: 0 0 5px var(--c);
  color:#fff;
  animation: pulseColorGreenMkt 1s infinite linear alternate;
}

@keyframes pulseColorGreenMkt {
  0% {
    background-color: var(--c);
  }
  100% {
    background-color: black;
  }
}

<div class="box light">
  Class defined on the element
</div>
<div class="dark">
  <div class="box">
    Class defined on a parent element
  </div>
</div>