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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>Custom Dropdown with Groups</title>
    <link rel="stylesheet" href="styles.css">
</head>
<body>
    <div class="dropdown-container">
        <div class="dropdown-button" onclick="toggleDropdown()">Select an option</div>
        <div class="dropdown-options" id="dropdown-options">
            <div class="dropdown-group">
                <div class="dropdown-group-title">Group 1</div>
                <div class="dropdown-option" onclick="selectOption('Option 1.1')">Option 1.1</div>
                <div class="dropdown-option" onclick="selectOption('Option 1.2')">Option 1.2</div>
            </div>
            <div class="dropdown-group">
                <div class="dropdown-group-title">Group 2</div>
                <div class="dropdown-option" onclick="selectOption('Option 2.1')">Option 2.1</div>
                <div class="dropdown-option" onclick="selectOption('Option 2.2')">Option 2.2</div>
                <div class="dropdown-option" onclick="selectOption('Option 2.3')">Option 2.3</div>
            </div>
            <div class="dropdown-group">
                <div class="dropdown-group-title">Group 3</div>
                <div class="dropdown-option" onclick="selectOption('Option 3.1')">Option 3.1</div>
                <div class="dropdown-option" onclick="selectOption('Option 3.2')">Option 3.2</div>
            </div>
        </div>
    </div>

    <script src="scripts.js"></script>
</body>
</html>



/* styles.css */
body {
    font-family: Arial, sans-serif;
    margin: 20px;
}

.dropdown-container {
    position: relative;
    display: inline-block;
    width: 200px;
}

.dropdown-button {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    background-color: #f9f9f9;
    cursor: pointer;
    box-sizing: border-box;
}

.dropdown-options {
    display: none;
    position: absolute;
    width: 100%;
    background-color: #fff;
    border: 1px solid #ccc;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    z-index: 1;
    max-height: 150px;
    overflow-y: auto;
}

.dropdown-group {
    margin-bottom: 20px;
}

.dropdown-group-title {
    padding: 10px;
    font-weight: bold;
    background-color: #f0f0f0;
}

.dropdown-option {
    padding: 10px;
    cursor: pointer;
}

.dropdown-option:hover {
    background-color: #f1f1f1;
}

.show {
    display: block;
}




// scripts.js
function toggleDropdown() {
    document.getElementById("dropdown-options").classList.toggle("show");
}

function selectOption(value) {
    document.querySelector(".dropdown-button").innerText = value;
    document.getElementById("dropdown-options").classList.remove("show");
}

// Close the dropdown if the user clicks outside of it
window.onclick = function(event) {
    if (!event.target.matches('.dropdown-button')) {
        var dropdowns = document.getElementsByClassName("dropdown-options");
        for (var i = 0; i < dropdowns.length; i++) {
            var openDropdown = dropdowns[i];
            if (openDropdown.classList.contains('show')) {
                openDropdown.classList.remove('show');
            }
        }
    }
}
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