Loading page design

Loading Page Design Skill

Design beautiful, performant loading pages that provide excellent user experience while users wait for content to load.

Core Principles

1. Set Clear Expectations

Users should always know:

• Something is happening
• How long they might wait (if predictable)
• What is being loaded

2. Keep It Engaging

• Use smooth, purposeful animations
• Show branded visual elements
• Provide feedback through progress indicators

3. Performance First

• Loading page itself must load fast
• Use CSS animations over JavaScript where possible
• Keep the loading UI lightweight

Loading Page Types

Full Page Loader

Covers the entire viewport during initial page load. Best for:

• Critical path loading
• App initialization
• Heavy content pages

Skeleton Screen

Shows a wireframeplaceholder structure of content loading. Best for:

• Feed/list content
• Card-based layouts
• Dynamic data tables

Inline Loader

Small indicator within existing content. Best for:

• Button loading states
• Form submissions
• Section refreshes

Progress Bar

Shows percentage or steps complete. Best for:

• File uploads/downloads
• Multi-step processes
• Known-duration operations

Animation Guidelines

Spinner Animations

/* Classic rotating spinner */
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Pulsing dots */
@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

Skeleton/Shimmer Effect

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton {
  background: linear-gradient(
    90deg,
    #f0f0f0 25%,
    #e0e0e0 50%,
    #f0f0f0 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

Progress Bar

@keyframes progress {
  0% { width: 0%; }
  100% { width: var(--progress, 100%); }
}

Design Patterns

Pattern 1: Minimal Dot Spinner

• 3-4 dots in a row
• Sequential pulse animation
• Subtle, non-distracting
• Use case: Inline loading, small spaces

Pattern 2: Branded Splash Loader

• Full viewport
• Centered logo
• Optional tagline
• Subtle background animation
• Use case: App launch, brand moment

Pattern 3: Progress Stepper

• Shows current step / total steps
• Step labels below
• Percentage optional
• Use case: Onboarding, multi-step forms

Pattern 4: Skeleton with Content Hint

• Shows content structure
• Rounded rectangles for text lines
• Circular placeholders for avatars/images
• Subtle shimmer animation
• Use case: Feed loading, card grids

Pattern 5: Infinity Loader

• Continuous flowing animation
• Brand color gradient
• Use case: Background processing, long waits

Color Guidelines

• Primary: Your brand color (for progress/spinner)
• Secondary: Lighter shade of primary (for skeleton background)
• Background: White or very light gray (#fafafa or #f5f5f5)
• Text: Dark gray (#333) for loading text
• Subtle: Light gray (#e0e0e0) for skeleton shapes

Accessibility

1. Reduced Motion: Always respect prefers-reduced-motion

   @media (prefers-reduced-motion: reduce) {
     *, *::before, *::after {
       animation-duration: 0.01ms !important;
       animation-iteration-count: 1 !important;
     }
   }
   

2. Screen Readers: Include aria-live="polite" for dynamic loading states

3. Color Contrast: Ensure text on loading screens meets WCAG AA

4. Focus Management: Don't trap focus in loading overlay

Output Format

When designing a loading page, always provide:

1. HTML Structure - Semantic, accessible markup
2. CSS Styles - Responsive, animation-friendly
3. JavaScript (if needed) - For progress updates, simulated loading

Example Output Structure

<!-- Loading Page -->
<div class="loading-page" role="status" aria-live="polite">
  <div class="loading-content">
    <!-- Logo/Brand -->
    <div class="loading-logo"></div>

    <!-- Progress/Spinner -->
    <div class="loading-indicator">
      <div class="spinner"></div>
    </div>

    <!-- Optional Text -->
    <p class="loading-text">Loading your content...</p>
  </div>
</div>

Implementation Checklist

• Loading page renders immediately (critical)
• Animation is smooth (60fps target)
• Works with prefers-reduced-motion
• Has proper ARIA attributes
• Shows meaningful content structure for skeleton loaders
• Uses brand colors appropriately
• Responsive on mobile devices
• Loading page itself loads < 50KB total