How to make the button border lit for only a few seconds?

I

Ivan Lunin2021-07-06 19:00:22

css

Ivan Lunin, 2021-07-06 19:00:22

I need to have a border on the button on the site every 4 seconds, how to do it rationally? It turned out that the yellow border appears and burns constantly

Here is the code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
  <div class="container">
    <div class="scrollUp" id="scrollButton">
      <img src="https://static.thenounproject.com/png/486804-200.png">
      
    </div>
  </div>
    
  <script src="script.js"></script>
</body>
</html>

*{
  margin: 0;
  padding: 0;
  text-decoration: none;
}
.container{
  height: 1900px;
  background-color: crimson;
  width: 70%;
  margin: 0 auto;
}
.scrollUp{
  margin-left: 60%;
  margin-top: 4%;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  background-color: #ffff;
  position: fixed;
}
.scrollUp img{
  align-items: center;
  width: 55px;
  height: 55px;
}

function yellow() {
  let buttonUp = document.getElementById('scrollButton').style.border = "3px solid yellow";
}

 setInterval(yellow, 3000);

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1 answer(s)

J

JavaDev, 2021-07-06
@IvanLu

snippet