5+ Javascript Loading Spinners

<script type="module" src="https://unpkg.com/ionicons@7.1.0/dist/ionicons/ionicons.esm.js"></script>
<script nomodule src="https://unpkg.com/ionicons@7.1.0/dist/ionicons/ionicons.js"></script>

<div class="container">
  <div class="header">
    <h1>Loading Spinners</h1>
    <p class="subtitle">Professional loading animations for modern web applications</p>
  </div>

  <div class="grid">
    <div class="card">
      <div class="spinner-container">
        <div class="spinner-1"></div>
      </div>
      <h3 class="card-title">Classic Circle</h3>
      <p class="card-description">Simple and elegant rotating border</p>
    </div>

    <div class="card">
      <div class="spinner-container">
        <div class="spinner-2"></div>
      </div>
      <h3 class="card-title">Dual Ring</h3>
      <p class="card-description">Two-tone spinning ring effect</p>
    </div>

    <div class="card">
      <div class="spinner-container">
        <div class="spinner-3">
          <span></span>
          <span></span>
          <span></span>
        </div>
      </div>
      <h3 class="card-title">Bouncing Dots</h3>
      <p class="card-description">Three dots with wave animation</p>
    </div>

    <div class="card">
      <div class="spinner-container">
        <div class="spinner-4"></div>
      </div>
      <h3 class="card-title">Pulse</h3>
      <p class="card-description">Smooth pulsing circle effect</p>
    </div>

    <div class="card">
      <div class="spinner-container">
        <div class="spinner-5">
          <span></span>
          <span></span>
          <span></span>
          <span></span>
        </div>
      </div>
      <h3 class="card-title">Bars</h3>
      <p class="card-description">Vertical bars with wave motion</p>
    </div>

    <div class="card">
      <div class="spinner-container">
        <div class="spinner-6"></div>
      </div>
      <h3 class="card-title">Ring Pulse</h3>
      <p class="card-description">Expanding and contracting ring</p>
    </div>

    <div class="card">
      <div class="spinner-container">
        <div class="spinner-7">
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
        </div>
      </div>
      <h3 class="card-title">Grid</h3>
      <p class="card-description">3x3 grid with sequential fade</p>
    </div>

    <div class="card">
      <div class="spinner-container">
        <div class="spinner-8">
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
          <span></span>
        </div>
      </div>
      <h3 class="card-title">Circle Dots</h3>
      <p class="card-description">Dots arranged in circular pattern</p>
    </div>

    <div class="card">
      <div class="spinner-container">
        <div class="spinner-9"></div>
      </div>
      <h3 class="card-title">Gradient Ring</h3>
      <p class="card-description">Colorful gradient border spinner</p>
    </div>
  </div>

  <div class="demo-section">
    <h2 class="demo-title">Interactive Demo</h2>
    <div class="demo-buttons">
      <button class="btn btn-primary" id="showInlineBtn">
        <ion-icon name="refresh-outline"></ion-icon>
        Show Inline Loader
      </button>
      <button class="btn btn-primary" id="showOverlayBtn">
        <ion-icon name="hourglass-outline"></ion-icon>
        Show Full Page Overlay
      </button>
      <button class="btn btn-secondary" id="clearBtn">
        <ion-icon name="close-outline"></ion-icon>
        Clear
      </button>
    </div>
    <div class="demo-display" id="demoDisplay">
      <p style="color: #94a3b8;">Click a button to see the loader in action</p>
    </div>
  </div>
</div>

<div class="overlay" id="overlay">
  <div class="overlay-content">
    <div class="spinner-1" style="margin: 0 auto;"></div>
    <p class="overlay-text">Loading, please wait...</p>
  </div>
</div>  

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            background: linear-gradient(135deg, #00008B 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 40px 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .header {
            text-align: center;
            margin-bottom: 50px;
            color: white;
        }

        h1 {
            font-size: 42px;
            margin-bottom: 12px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }

        .subtitle {
            font-size: 18px;
            opacity: 0.9;
        }

        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            margin-bottom: 30px;
        }

        .card {
            background: white;
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            display: flex;
            flex-direction: column;
            align-items: center;
            transition: transform 0.3s;
        }

        .card:hover {
            transform: translateY(-5px);
        }

        .spinner-container {
            width: 120px;
            height: 120px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 600;
            color: #00008B;
            margin-bottom: 8px;
        }

        .card-description {
            font-size: 14px;
            color: #64748b;
            text-align: center;
        }

        /* Spinner 1: Classic Circle */
        .spinner-1 {
            width: 60px;
            height: 60px;
            border: 6px solid #00008B;
            border-top-color: #667eea;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

        /* Spinner 2: Dual Ring */
        .spinner-2 {
            width: 60px;
            height: 60px;
            border: 6px solid transparent;
            border-top-color: #667eea;
            border-bottom-color: #00008B;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        /* Spinner 3: Dots */
        .spinner-3 {
            display: flex;
            gap: 8px;
        }

        .spinner-3 span {
            width: 12px;
            height: 12px;
            background: #00008B;
            border-radius: 50%;
            animation: bounce 1.4s infinite ease-in-out both;
        }

        .spinner-3 span:nth-child(1) {
            animation-delay: -0.32s;
        }

        .spinner-3 span:nth-child(2) {
            animation-delay: -0.16s;
        }

        /* Spinner 4: Pulse */
        .spinner-4 {
            width: 60px;
            height: 60px;
            background: #00008B;
            border-radius: 50%;
            animation: pulse 1.2s infinite ease-in-out;
        }

        /* Spinner 5: Bars */
        .spinner-5 {
            display: flex;
            gap: 6px;
            align-items: center;
            height: 60px;
        }

        .spinner-5 span {
            width: 8px;
            height: 40px;
            background: #00008B;
            border-radius: 4px;
            animation: bars 1.2s infinite ease-in-out;
        }

        .spinner-5 span:nth-child(1) {
            animation-delay: -0.4s;
        }

        .spinner-5 span:nth-child(2) {
            animation-delay: -0.3s;
        }

        .spinner-5 span:nth-child(3) {
            animation-delay: -0.2s;
        }

        .spinner-5 span:nth-child(4) {
            animation-delay: -0.1s;
        }

        /* Spinner 6: Ring */
        .spinner-6 {
            width: 60px;
            height: 60px;
            border: 6px solid #00008B;
            border-radius: 50%;
            animation: ring 1.5s infinite ease-in-out;
        }

        /* Spinner 7: Grid */
        .spinner-7 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 6px;
        }

        .spinner-7 span {
            width: 12px;
            height: 12px;
            background: #00008B;
            border-radius: 2px;
            animation: grid 1.5s infinite ease-in-out;
        }

        .spinner-7 span:nth-child(1) { animation-delay: 0s; }
        .spinner-7 span:nth-child(2) { animation-delay: 0.1s; }
        .spinner-7 span:nth-child(3) { animation-delay: 0.2s; }
        .spinner-7 span:nth-child(4) { animation-delay: 0.3s; }
        .spinner-7 span:nth-child(5) { animation-delay: 0.4s; }
        .spinner-7 span:nth-child(6) { animation-delay: 0.5s; }
        .spinner-7 span:nth-child(7) { animation-delay: 0.6s; }
        .spinner-7 span:nth-child(8) { animation-delay: 0.7s; }
        .spinner-7 span:nth-child(9) { animation-delay: 0.8s; }

        /* Spinner 8: Circle Dots */
        .spinner-8 {
            width: 60px;
            height: 60px;
            position: relative;
        }

        .spinner-8 span {
            position: absolute;
            width: 10px;
            height: 10px;
            background: #00008B;
            border-radius: 50%;
            animation: circleDots 1.2s infinite ease-in-out;
        }

        .spinner-8 span:nth-child(1) {
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            animation-delay: 0s;
        }

        .spinner-8 span:nth-child(2) {
            top: 14%;
            right: 14%;
            animation-delay: -0.1s;
        }

        .spinner-8 span:nth-child(3) {
            top: 50%;
            right: 0;
            transform: translateY(-50%);
            animation-delay: -0.2s;
        }

        .spinner-8 span:nth-child(4) {
            bottom: 14%;
            right: 14%;
            animation-delay: -0.3s;
        }

        .spinner-8 span:nth-child(5) {
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            animation-delay: -0.4s;
        }

        .spinner-8 span:nth-child(6) {
            bottom: 14%;
            left: 14%;
            animation-delay: -0.5s;
        }

        .spinner-8 span:nth-child(7) {
            top: 50%;
            left: 0;
            transform: translateY(-50%);
            animation-delay: -0.6s;
        }

        .spinner-8 span:nth-child(8) {
            top: 14%;
            left: 14%;
            animation-delay: -0.7s;
        }

        /* Spinner 9: Gradient Circle */
        .spinner-9 {
            width: 60px;
            height: 60px;
            border: 6px solid transparent;
            border-radius: 50%;
            background: linear-gradient(white, white) padding-box,
                        linear-gradient(45deg, #00008B, #764ba2) border-box;
            position: relative;
            animation: spin 1s linear infinite;
        }

        .spinner-9::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 8px;
            height: 8px;
            background: #00008B;
            border-radius: 50%;
            transform: translate(-50%, -50%);
        }

        /* Demo Section */
        .demo-section {
            background: white;
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            text-align: center;
        }

        .demo-title {
            font-size: 24px;
            font-weight: 600;
            color: #1a202c;
            margin-bottom: 24px;
        }

        .demo-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }

        .btn {
            padding: 12px 24px;
            border: none;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary {
            background: #667eea;
            color: white;
        }

        .btn-primary:hover {
            background: #5568d3;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
        }

        .btn-secondary {
            background: #f1f5f9;
            color: #00008B;
        }

        .btn-secondary:hover {
            background: #e2e8f0;
        }

        .demo-display {
            min-height: 200px;
            background: #f8fafc;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 1000;
        }

        .overlay.active {
            display: flex;
        }

        .overlay-content {
            background: white;
            padding: 40px;
            border-radius: 16px;
            text-align: center;
            min-width: 300px;
        }

        .overlay-text {
            margin-top: 20px;
            color: #64748b;
            font-size: 16px;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        @keyframes bounce {
            0%, 80%, 100% {
                transform: scale(0);
                opacity: 0.5;
            }
            40% {
                transform: scale(1);
                opacity: 1;
            }
        }

        @keyframes pulse {
            0%, 100% {
                transform: scale(0.8);
                opacity: 0.5;
            }
            50% {
                transform: scale(1.2);
                opacity: 1;
            }
        }

        @keyframes bars {
            0%, 40%, 100% {
                transform: scaleY(0.5);
            }
            20% {
                transform: scaleY(1);
            }
        }

        @keyframes ring {
            0%, 100% {
                transform: scale(0.8);
                opacity: 0.5;
            }
            50% {
                transform: scale(1);
                opacity: 1;
            }
        }

        @keyframes grid {
            0%, 70%, 100% {
                transform: scale(1);
                opacity: 1;
            }
            35% {
                transform: scale(0);
                opacity: 0.3;
            }
        }

        @keyframes circleDots {
            0%, 80%, 100% {
                transform: scale(0);
                opacity: 0.3;
            }
            40% {
                transform: scale(1);
                opacity: 1;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 32px;
            }

            .grid {
                grid-template-columns: 1fr;
            }
        }

   const showInlineBtn = document.getElementById('showInlineBtn');
        const showOverlayBtn = document.getElementById('showOverlayBtn');
        const clearBtn = document.getElementById('clearBtn');
        const demoDisplay = document.getElementById('demoDisplay');
        const overlay = document.getElementById('overlay');

        showInlineBtn.addEventListener('click', () => {
            demoDisplay.innerHTML = `
                <div>
                    <div class="spinner-2" style="margin: 0 auto 20px;"></div>
                    <p style="color: #64748b;">Loading content...</p>
                </div>
            `;

            // Simulate loading completion
            setTimeout(() => {
                demoDisplay.innerHTML = `
                    <div style="color: #10b981; display: flex; flex-direction: column; align-items: center; gap: 12px;">
                        <ion-icon name="checkmark-circle" style="font-size: 48px;"></ion-icon>
                        <p style="font-weight: 600;">Content loaded successfully!</p>
                    </div>
                `;
            }, 3000);
        });

        showOverlayBtn.addEventListener('click', () => {
            overlay.classList.add('active');

            // Simulate loading completion
            setTimeout(() => {
                overlay.classList.remove('active');
            }, 3000);
        });

        clearBtn.addEventListener('click', () => {
            demoDisplay.innerHTML = '<p style="color: #94a3b8;">Click a button to see the loader in action</p>';
        });

        // Close overlay on click
        overlay.addEventListener('click', (e) => {
            if (e.target === overlay) {
                overlay.classList.remove('active');
            }
        });