Performance Tips

• Use CSS properties that don't trigger layout recalculations (transform, opacity, color, background)
• Avoid excessive animations that might impact page performance
• Use !important sparingly - only when necessary to override inline styles
• Keep your custom CSS concise and focused on specific changes
• Test performance on mobile devices for smooth animations

Compatibility Tips

• Test your custom CSS across different browsers (Chrome, Firefox, Safari, Edge)
• Use vendor prefixes for experimental CSS properties (-webkit-, -moz-, etc.)
• Avoid using CSS that might conflict with your website's existing styles
• Consider using a custom class prefix to prevent conflicts
• Verify responsive behavior on various screen sizes and devices

Selector Best Practices

• Be specific with selectors to target only banner elements
• Use BEM naming convention for clarity: .coupedge-banner__element--modifier
• Avoid overly broad selectors like button or div
• Target specific layout or theme combinations when needed

CSS Variables Approach

• Define reusable CSS custom properties for consistent styling
• Use variables for colors, spacing, and other repeated values
• Makes it easier to update multiple styles at once

:root {
  --banner-primary: #667eea;
  --banner-radius: 12px;
}

.coupedge-banner {
  background: var(--banner-primary) !important;
  border-radius: var(--banner-radius) !important;
}