How can I make my svg's grinder rotate using CSS animations while staying in place?

Issue

fellow Devs,

I'm currently having trouble making my grinders (or whatever they're called) rotate properly in my svg. Basically I want them to rotate 360deg in place instead of going across the screen like so:

[codepen] (https://codepen.io/UserBrayann/pen/KKQNboQ)

Any solutions will be awesome and appreciated.

CSS

    @keyframes cloud-color {
  100% {
    fill: #000;
  }
}

@keyframes cloud-move {
  from {
    transform: translate(0, 20px);
  }
  to {
    transform: translate(100px, 20px);
  }
}

@keyframes rotating-grind {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.grind {
  animation: 2s rotating-grind infinite linear;
  transform-origin: top bottom;
}

.cloud {
  animation: 2s cloud-move infinite alternate linear;
}

Solution

@keyframes rotating-grind {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
.grind {
  animation: rotating-grind 5s infinite linear;
  transform-box: fill-box;
  transform-origin: 50% 50%;
}

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          <metadata>
            Created by potrace 1.16, written by Peter Selinger 2001-2019
          </metadata>
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You can use transform-box: fill-box; with transform-origin: 50% 50%;

@keyframes rotating-grind {
  from {
    transform: rotate(0deg);     
  }
  to {
    transform: rotate(360deg);    
  }
}

.grind {
  animation: rotating-grind 5s infinite linear; 
  transform-box: fill-box;
  transform-origin: 50% 50%;
}

Answered By - Hai Tien