HTML-CSS-JAVASCRIPT/PR1.HTML at main · KapsEditz/HTML-CSS-JAVASCRIPT · 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">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0/dist/css/bootstrap.min.css" rel="stylesheet"
        integrity="sha384-wEmeIV1mKuiNpC+IOBjI7aAzPcEZeedi5yW5f2yOq55WWLwNGmvvx4Um1vskeMj0" crossorigin="anonymous">
    <link rel="stylesheet" href="styles.css">
    <link rel="shortcut icon" href="favicon.png" type="image/png">
    <title>Practice session 1</title>
</head>

<body>
    <div class="d-flex align-content-center flex-column m-5 p-5">
        <h3>Problem 1 - Change Background Color by OnClick() - </h3>
        <button class="btn btn-outline-dark m-3" onclick="red()">RED</button>
        <button class="btn btn-outline-dark m-3" onclick="green()">GREEN</button>
        <button class="btn btn-outline-dark m-3" onclick="blue()">BLUE</button>
        <button class="btn btn-outline-dark m-3" onclick="yellow()">YELLOW</button>
        <button class="btn btn-outline-dark m-3" onclick="black()">BLACK</button>
        <script>
            function red() {
                document.body.style.backgroundColor = "red";
            }
            function green() {
                document.body.style.backgroundColor = "green";
            }
            function blue() {
                document.body.style.backgroundColor = "blue";
            }
            function yellow(){
                document.body.style.backgroundColor = "yellow";
            }
            function black(){
                document.body.style.backgroundColor = "black";
            }
        </script>
    </div>

    <div class="d-flex align-content-center flex-column m-5 p-5">
        <h3>Problem 2 - </h3>
    </div>


    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0/dist/js/bootstrap.bundle.min.js"
        integrity="sha384-p34f1UUtsS3wqzfto5wAAmdvj+osOnFyQFpp4Ua3gs/ZVWx6oOypYoCJhGGScy+8"
        crossorigin="anonymous"></script>
    <script src="script.js"></script>
</body>

</html>