How to apply an elastic effect with css-CodePudding

I have to simulate a "wind blow on a plate" and researching a little I found the rotate property, but when I apply it it is rotating the whole image, as shown in the gif below.

However I expected to get something like the image below, but smoother.

Which property to use so that I keep the floor (part where the plate is stuck) in the fixed image?

CodePudding user response：

Use transform-origin: bottom center.

<!DOCTYPE html>
<html>
<head>
<style> 
#myDIV {
  margin: auto;
  border: 1px solid black;
  width: 200px;
  height: 100px;
  background-color: coral;
  color: white;
  animation: mymove 5s infinite;
  transform-origin: bottom center
}

@keyframes mymove {
  0% {
  transform: rotate(-20deg);
  }
  50% {
  transform: rotate(20deg);
  }
  100% {
  transform: rotate(-20deg);
  }
  
}
</style>
</head>
<body>

<h1>Animation of transform</h1>

<p>Gradually rotate the element around the bottom center:<p>

<div id="myDIV">
  <h1>myDIV</h1>
</div>

</body>
</html>

Found here: https://stackoverflow.com/a/6633676/13867483