Animate CSS outline-width


To implement animation on outline-width property with CSS, you can try to run the following code

Example

Live Demo

<!DOCTYPE html>
<html>
   <head>
      <style>
         div {
            width: 350px;
            height: 150px;
            outline: 2px solid yellow;
            animation: myanim 3s infinite;
         }
         @keyframes myanim {
            50% {
               outline-width: 10px;
            }
         }
      </style>
   </head>
   <body>
      <h1>CSS outline-width property</h1>
      <div></div>
   </body>
</html>

Updated on: 25-Jun-2020

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