Page Scroll Indicator with Html CSS & Javascript

Hello guys in this tutorial we will create scroll indicator line using HTML CSS & JavaScript.

First we need to create two files index.html and style.css then we need to do code for it.

Step:1

Add below code inside index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>Scroll Indicator</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta https-equiv="X-UA-Compatible" content="ie=edge" />
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <div id="scroll-indicator"></div>
    <script type="text/javascript">
      const indicator = document.querySelector("#scroll-indicator");
      const MaxHeight = document.body.scrollHeight - window.innerHeight;
      window.addEventListener("scroll", ()=> {
        const per = (window.scrollY / MaxHeight) * 100;

        indicator.style.width = `${per}%`;
      })
    </script>
  </body> 
</html>

Step:2

Then we need to add code for style.css which code i provide in below screen.

* {
    padding: 0;
    margin: 0;
}
body {
    background: #f1f2f3;
    height: 600vh;
}
#scroll-indicator {
    position: fixed;
    top: 0;
    height: 5px;
    background: #4b00ff;
    width: 0;
}

Output:

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