Untitled

<!DOCTYPE html>
<html>
<head>
    <style>
        .container {
            position: relative;
            height: 400px;
            overflow: hidden;
        }

        .wave {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: linear-gradient(to bottom, rgba(0, 0, 255, 0.4) 0%, rgba(0, 0, 255, 0) 100%);
            animation: waveAnimation 4s linear infinite;
        }

        @keyframes waveAnimation {
            0% {
                opacity: 0;
            }
            50% {
                opacity: 1;
            }
            100% {
                opacity: 0;
            }
        }

        .box-container {
            position: relative;
            margin-top: 60px;
        }

        .box {
            width: 50px;
            height: 50px;
            margin: 5px;
            display: inline-block;
            background-color: blue;
            position: relative;
        }

        .line {
            position: absolute;
            width: 100%;
            height: 2px;
            background-color: black;
            bottom: -6px;
            left: 0;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="wave"></div>
        <div class="box-container" id="container"></div>
    </div>

    <script>
        // Create the grid
        var container = document.getElementById('container');
        for (var i = 0; i < 5; i++) {
            for (var j = 0; j < 10; j++) {
                var box = document.createElement('div');
                box.className = 'box';
                var line = document.createElement('div');
                line.className = 'line';
                box.appendChild(line);
                container.appendChild(box);
            }
            container.appendChild(document.createElement('br'));
        }

        // Function to generate a random color
        function getRandomColor() {
            var letters = '0123456789ABCDEF';
            var color = '#';
            for (var i = 0; i < 6; i++) {
                color += letters[Math.floor(Math.random() * 16)];
            }
            return color;
        }

        // Function to update box colors
        function updateColors() {
            var boxes = document.getElementsByClassName('box');
            for (var i = 0; i < boxes.length; i++) {
                var box = boxes[i];
                box.style.backgroundColor = getRandomColor();
            }
        }

        // Interval to update colors every 1 second
        setInterval(updateColors, 1000);

        // Wave effect animation
        var wave = document.createElement('div');
        wave.className = 'wave';
        container.appendChild(wave);
    </script>
</body>
</html>
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