JSFiddle - React, Tailwind, and code Playground

HTML

<div style="position: absolute;">
    <div class="some-size toolipster" style="z-index: 20;"></div>
    <div class="some-size animation" style="z-index: 19;"></div>
</div>

CSS

.some-size 
{
    position: absolute;
    top: 20px;
    left: 20px;
    width: 30px;
    height: 30px;
    background-color: #FF0000;
    
}

.animation:hover,
.toolipster:hover + .animation{
    cursor: pointer;
  animation: grow-animationFrames ease 1s;
  animation-iteration-count: 1;
  transform-origin: 50% 50%;
  animation-fill-mode:forwards; /*when the spec is finished*/
  -webkit-animation: grow-animationFrames ease 1s;
  -webkit-animation-iteration-count: 1;
  -webkit-transform-origin: 50% 50%;
  -webkit-animation-fill-mode:forwards; /*Chrome 16+, Safari 4+*/ 
  -moz-animation: grow-animationFrames ease 1s;
  -moz-animation-iteration-count: 1;
  -moz-transform-origin: 50% 50%;
  -moz-animation-fill-mode:forwards; /*FF 5+*/
  -o-animation: grow-animationFrames ease 1s;
  -o-animation-iteration-count: 1;
  -o-transform-origin: 50% 50%;
  -o-animation-fill-mode:forwards; /*Not implemented yet*/
  -ms-animation: grow-animationFrames ease 1s;
  -ms-animation-iteration-count: 1;
  -ms-transform-origin: 50% 50%;
  -ms-animation-fill-mode:forwards; /*IE 10+*/
}

@keyframes grow-animationFrames{
  0% {
    transform:  scaleX(1.00) scaleY(1.00) ;
  }
  100% {
    transform:  scaleX(2.00) scaleY(2.00) ;
  }
}

@-moz-keyframes grow-animationFrames{
  0% {
    -moz-transform:  scaleX(1.00) scaleY(1.00) ;
  }
  100% {
    -moz-transform:  scaleX(2.00) scaleY(2.00) ;
  }
}

@-webkit-keyframes grow-animationFrames {
  0% {
    -webkit-transform:  scaleX(1.00) scaleY(1.00) ;
  }
  100% {
    -webkit-transform:  scaleX(2.00) scaleY(2.00) ;
  }
}

@-o-keyframes grow-animationFrames {
  0% {
    -o-transform:  scaleX(1.00) scaleY(1.00) ;
  }
  100% {
    -o-transform:  scaleX(2.00) scaleY(2.00) ;
  }
}

@-ms-keyframes grow-animationFrames {
  0% {
    -ms-transform:  scaleX(1.00) scaleY(1.00) ;
  }
  100% {
    -ms-transform:  scaleX(2.00) scaleY(2.00) ;
  }
}

JavaScript

// Comment
// Tooltipster plugin class to launc a tooltip with HTML