Animate CSS text-decoration-color property

To implement animation on text-decoration property with CSS, you can try to run the following code −


Live Demo

<!DOCTYPE html>
         #demo {
            position: absolute;
            right: 0;
            width: 300px;
            height: 200px;
            background-color: blue;
            text-decoration: underline;
            animation: myanim 3s infinite;
         @keyframes myanim {
            30% {
               right: 350px;
               text-decoration-color: orange;
      <h1>CSS text-decoration-color property</h1>
      <div id = "demo">
         <h1>This is demo text.</h1>