Collapsible Row Table (Mobile) - Free UI Component

Header Background #ffffff

Header Text Color #1e293b

Row Background #ffffff

Row Hover Fill #f1f5f9

Toggle Button Color #2563eb

Text Color #475569

Border Color #e2e8f0

Vertical Padding (rem) 0.85

Horizontal Padding (rem) 1.25

Container Width 1000px

Collapsible Row Table (Mobile)

Intelligently hides secondary columns on mobile and replaces them with a details toggle for a cleaner small-screen experience.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Collapsible Row Table (Mobile)</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap" rel="stylesheet">
    <style>
        /* -- Variables ------------------------------------------------- */
        :root {
            --header-bg: {{headerBgColor}};
            --header-text: {{headerTextColor}};
            --row-bg: {{rowBgColor}};
            --row-hover: {{rowHoverBg}};
            --text-color: {{textColor}};
            --border-color: {{borderColor}};
            --accent-color: {{accentColor}};
            --v-pad: {{vPadding}}rem;
            --h-pad: {{hPadding}}rem;
            --table-w: {{tableWidth}};
        }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
            font-family: 'Inter', sans-serif;
            background-color: #f8fafc;
            color: var(--text-color);
            padding: 3rem 1.5rem;
            display: flex;
            justify-content: center;
        }

.table-container {
            width: 100%;
            max-width: var(--table-w);
            background: var(--row-bg);
            border-radius: 8px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border-color);
            overflow: hidden;
        }

table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

thead {
            background-color: var(--header-bg);
            color: var(--header-text);
        }

th {
            padding: var(--v-pad) var(--h-pad);
            font-weight: 600;
            border-bottom: 2px solid var(--border-color);
        }

td {
            padding: var(--v-pad) var(--h-pad);
            border-bottom: 1px solid var(--border-color);
            color: var(--text-color);
        }

tbody tr.main-row {
            transition: background-color 0.2s ease;
        }

tbody tr.main-row:hover {
            background-color: var(--row-hover);
        }

.toggle-btn {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            padding: 4px 8px;
            cursor: pointer;
            color: var(--accent-color);
            font-size: 0.75rem;
            font-weight: 600;
        }

.mobile-only { display: none; }

/* -- Responsive Logic ------------------------------------------ */
        @media (max-width: 640px) {
            /* Hide non-priority columns */
            .secondary-column {
                display: none;
            }

.toggle-btn {
                display: inline-block;
            }

.expanded-row {
                display: none;
                background-color: rgba(0,0,0,0.02);
            }

.expanded-row.active {
                display: table-row;
            }

.expanded-content {
                padding: 1rem;
                font-size: 0.85rem;
            }

.mobile-label {
                font-weight: 600;
                color: #64748b;
                text-transform: uppercase;
                font-size: 0.7rem;
                display: block;
                margin-top: 0.5rem;
            }
            .mobile-label:first-child { margin-top: 0; }
        }

</style>
</head>
<body>

<div class="table-container">
        <table>
            <thead>
                <tr>
                    <th>Member Name</th>
                    <th class="secondary-column">Role Title</th>
                    <th class="secondary-column">Join Date</th>
                    <th>Status</th>
                    <th style="width: 50px;"></th>
                </tr>
            </thead>
            <tbody>
                <tr class="main-row">
                    <td><strong>Elias Thorne</strong></td>
                    <td class="secondary-column">Engineering Director</td>
                    <td class="secondary-column">Jan 2022</td>
                    <td><span style="color: #16a34a; font-weight: 500;">Active</span></td>
                    <td><button class="toggle-btn" onclick="toggleRow(this)">DETAILS</button></td>
                </tr>
                <tr class="expanded-row">
                    <td colspan="3">
                        <div class="expanded-content">
                            <span class="mobile-label">Role Title</span>
                            Engineering Director
                            <span class="mobile-label">Join Date</span>
                            Jan 2022
                        </div>
                    </td>
                </tr>

<tr class="main-row">
                    <td><strong>Mira Patel</strong></td>
                    <td class="secondary-column">Senior Architect</td>
                    <td class="secondary-column">Mar 2021</td>
                    <td><span style="color: #16a34a; font-weight: 500;">Active</span></td>
                    <td><button class="toggle-btn" onclick="toggleRow(this)">DETAILS</button></td>
                </tr>
                <tr class="expanded-row">
                    <td colspan="3">
                        <div class="expanded-content">
                            <span class="mobile-label">Role Title</span>
                            Senior Architect
                            <span class="mobile-label">Join Date</span>
                            Mar 2021
                        </div>
                    </td>
                </tr>

<tr class="main-row">
                    <td><strong>Anton Kozlov</strong></td>
                    <td class="secondary-column">Fullstack Dev</td>
                    <td class="secondary-column">Jun 2023</td>
                    <td><span style="color: #ea580c; font-weight: 500;">On Leave</span></td>
                    <td><button class="toggle-btn" onclick="toggleRow(this)">DETAILS</button></td>
                </tr>
                <tr class="expanded-row">
                    <td colspan="3">
                        <div class="expanded-content">
                            <span class="mobile-label">Role Title</span>
                            Fullstack Dev
                            <span class="mobile-label">Join Date</span>
                            Jun 2023
                        </div>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>

</body>
</html>