<script src='https://combinatronics.io/Figsh/FSCSS/refs/heads/4.0.1/fscss_exec.js' async=""></script>
<div>
  <h1></h1>
  <h2></h2>
  <h3></h3>
  <h4></h4>
  <h5></h5>
  </div>
<style>
  Re(EL:'div, h1, h2, h3, h4, h5')
 $(@keyframes animation-name, EL &[9s steps(30) infinite forwards alternate]) {
    0%{
    Border: 4px dotted #0f07f0;
   } 
    100%{
      Border: 20px dashed #669;
     } 
   } 
  </style>