REPO_FEE/class43.html at main · tropicalflowers/REPO_FEE · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1 id="title">Hello, World!</h1>
<h2 class="titlee">first heading using h2</h2>
<h2 class="titlee">second heading using h2</h2>
<h2 class="titlee">third heading using h2</h2>
<p id="para">This is a sample HTML document.</p>

<script>
    let headingElement = document.getElementById("title");
    let paraElement = document.getElementById("para");

    // update h1
    headingElement.innerHTML = "Hello, Universe!";

    // update paragraph
    paraElement.innerHTML = "This is an updated paragraph.";

    // select all h2 with class "titlee"
    let elements = document.getElementsByClassName("titlee");

    // loop through them
    for (let i = 0; i < elements.length; i++) {
        elements[i].style.color = "green";
        elements[i].innerHTML = "Changed heading " + (i + 1);
    }
</script>
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</body>
</html>