CSS/onclick color change.html at main · Snowil-tuscano/CSS · 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>click on the dropddown list and see the magic </h1>

    <select name="color1" id="change" onchange="col(this.value)">
        <option>Select the Color</option>
        <option value="Red">Red</option>
        <option value="green">Green</option>
        <option value="Blue">Blue</option>
        <option value="Yellow">Yellow</option>
        <option value="cyan">cyan</option>
        <option value="purple">purple</option>
    </select>
    <script>
        function col(color) {

            if (color == "Select the Color") {
                alert(" please select the color")
            }
            else

            var newwin = window.open("", "new page", "width =1440 , height = 600")
            newwin.document.write("color is changed to " + color)
            newwin.document.body.style.backgroundColor = color;


        }


    </script>

</body>

</html>