JavaScript/JavaScript_Dynamic_Web_With_DOM/Manipulating_Element_Style.html at master · TheShubham-K/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=1.0" />
    <title>&#x1F3F4;&#x200D;&#x2620;&#xFE0F; Complete Javascripts Course</title>
    <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet"
        integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous" />
    <style>
        /* div .output {
      background-color: red;
    } */
    </style>
</head>

<body onload="start()">
    <br />
    <br />
    <center>
        <!-- <input type="text" id="item"> -->
        <br />
        <div id="wrapper">&#x1F4C3; &#x1F3EA; 👾</div>
        <br />
        <div id="message">Message 1</div>
        <div id="message1">Message 2</div>
        <div id="message">Message 1</div>
        <div class="output">Test Me 1</div>
        <div class="output">Test Me 2</div>
        <div id="pickme1">
            <div class="output highlight">Test Me 3</div>
        </div>
        <input type="text" name="queryStuff" id="queryStuff">
        <!-- <input type="button" class="btn btn-outline-warning" onclick="mySel()" value="Get Query"> -->
        <div id="pickme2">
            <div class="output">Test Me 4</div>
            <div class="output">Test Me 5</div>
            <div class="output">Test Me 6</div>
        </div>
        <div class="output highlight">Test Me 7</div>
        <div class="output">Test Me 8</div>
        <div class="output">Test Me 9</div>
        <div class="output">Test Me 10</div>
    </center>
    <script>
        var message = document.getElementById("message");
        message.style.display = "none"
        message.style.display = "block"
        message.style.color = "red"
        message.style.borderBottomColor = "blue"
        message.style.border = "1px solid"
        message.style.backgroundColor = "yellow"
        var bgColor = ["red", "blue", "yellow", "black", "pink", "orange", "gray", "green", "teal", "indigo", "purple",
            "cyan", "white", "#7ffae0", "#052f13", "#2b6c73", "#89b9e0", "#e5ed10", "#15ff5d", "#28fc89", "#43a2f2",
            "#61328b", "#9be6d7", "#5446f3", "#44957E", "#614CB8", "#614CB8"
        ]
        var c;
        var el = document.querySelectorAll('.output');

        function start() {
            setInterval(swapBg, 1000);
        }

        function swapBg() {
            for (var x = 0; x < el.length; x++) {
                c = bgColor[Math.floor(Math.random() * bgColor.length)];
                el[x].style.backgroundColor = c;
            }
        }
    </script>

    <script src="https://code.jquery.com/jquery-3.5.0.js"
        integrity="sha256-r/AaFHrszJtwpe+tHyNi/XCfMxYpbsRg2Uqn0x3s2zc=" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.bundle.min.js"></script>
</body>

</html>