タブメニュー:グラスモーフィズム|Tab Menu: Glassmorphism

  • Tab 1
  • Tab 2
  • Tab 3
Good morning. This is the content of Tab 1.
Hello. This is the content of Tab 2.
Good evening. This is the content of Tab 3.
HTML
<div class="container">
    <h1>Tab Design 9 - Glassmorphism</h1>
    
    <div class="tab-container">
        <ul>
            <li class="selected" data-id="tab-1">Tab 1</li>
            <li data-id="tab-2">Tab 2</li>
            <li data-id="tab-3">Tab 3</li>
        </ul>
        <div class="tab-content selected" id="tab-1">
            Good morning. This is the content of Tab 1.
        </div>
        <div class="tab-content" id="tab-2">
            Hello. This is the content of Tab 2.
        </div>
        <div class="tab-content" id="tab-3">
            Good evening. This is the content of Tab 3.
        </div>
    </div>
</div>
CSS
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
    height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

h1 {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: white;
    margin: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

/* ===== Design 9: Glassmorphism ===== */
.tab-container {
    overflow: hidden;
    border-radius: 16px;
    position: relative;
}

.tab-container::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57);
    border-radius: 18px;
    z-index: -1;
    animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { 
        background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57);
    }
    25% { 
        background: linear-gradient(45deg, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff6b6b);
    }
    50% { 
        background: linear-gradient(45deg, #45b7d1, #96ceb4, #feca57, #ff6b6b, #4ecdc4);
    }
    75% { 
        background: linear-gradient(45deg, #96ceb4, #feca57, #ff6b6b, #4ecdc4, #45b7d1);
    }
}

.tab-container ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px 16px 0 0;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: none;
}

.tab-container ul::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        rgba(255, 255, 255, 0.05) 50%, 
        rgba(255, 255, 255, 0.1) 100%);
    pointer-events: none;
}

.tab-container ul li {
    flex: 1;
    padding: 18px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    letter-spacing: 0.5px;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

.tab-container ul li:last-child {
    border-right: none;
}

.tab-container ul li::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.1) 50%, 
        transparent 100%);
    transition: left 0.6s ease;
}

.tab-container ul li:hover::before {
    left: 100%;
}

.tab-container ul li.selected {
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.tab-container ul li.selected::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57);
    animation: rainbowFlow 3s linear infinite;
}

@keyframes rainbowFlow {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.tab-container ul li:not(.selected):hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.tab-container .tab-content {
    display: none;
    padding: 32px;
    min-height: 180px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: rgba(255, 255, 255, 0.9);
    border-radius: 0 0 16px 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-top: none;
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.tab-container .tab-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.05) 0%, 
        rgba(255, 255, 255, 0.02) 50%, 
        rgba(255, 255, 255, 0.05) 100%);
    pointer-events: none;
}

.tab-container .tab-content.selected {
    display: block;
    animation: glassFadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes glassFadeIn {
    from { 
        opacity: 0; 
        transform: translateY(-20px) scale(0.95);
        backdrop-filter: blur(10px);
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1);
        backdrop-filter: blur(20px);
    }
}
JavaScript
// Get tab container
const tabContainer = document.querySelector('.tab-container');
const tabMenuItems = tabContainer.querySelectorAll('ul li');
const tabContents = tabContainer.querySelectorAll('.tab-content');

// Set event listeners for each tab menu item
tabMenuItems.forEach(tabMenuItem => {
    tabMenuItem.addEventListener('click', () => {
        // Remove selected class from all tabs
        tabMenuItems.forEach(item => {
            item.classList.remove('selected');
        });
        
        // Add selected class only to clicked tab
        tabMenuItem.classList.add('selected');
        
        // Remove selected class from all tab contents
        tabContents.forEach(tabContent => {
            tabContent.classList.remove('selected');
        });

        // Add selected class to content with same ID as clicked tab's data attribute
        document.getElementById(tabMenuItem.dataset.id).classList.add('selected');
    });
});
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