Interactive Comparison Table with Gutenberg Blocks

Interactive Comparison Table with Gutenberg

Learn how to build a dynamic comparison table with column highlighting using vanilla JavaScript and Gutenberg blocks.

Live Demo: Interactive Comparison Table

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Understanding the HTML Structure

The comparison table uses a semantic structure with data attributes for JavaScript targeting. Each column is wrapped in a div with a data-plan attribute, making it easy to identify and manipulate specific pricing tiers.

The key structural elements include a wrapper div for the entire table, individual column containers, header sections with pricing, feature lists and action buttons. This modular approach ensures maintainability and scalability.

CSS Approach and Styling Strategy

The CSS uses a mobile-first approach with flexbox for responsive column layouts. Hover states are managed through the .column-hover class, which applies a subtle transform and shadow effect to create visual feedback.

The .best-choice-active class provides a persistent highlight with a distinctive border and background color. CSS transitions ensure smooth state changes, while custom properties enable easy theme customization. The design prioritizes clarity and visual hierarchy.

Accessibility Considerations

  • Keyboard navigation support with focus-visible states for all interactive elements
  • ARIA labels on checkboxes to announce state changes to screen readers
  • Sufficient color contrast ratios meeting WCAG AA standards
  • Semantic HTML structure with proper heading hierarchy
  • Visual feedback that doesn’t rely solely on color

Common Pitfalls to Avoid

Avoid using inline styles for state management as they override CSS classes and make debugging difficult. Don’t forget to remove event listeners if dynamically adding/removing columns to prevent memory leaks.

How AI Builder Can Generate This in WordPress

AI Builder automatically generates the complete Gutenberg block structure, including the HTML block with the comparison table markup. It creates responsive CSS with hover states, transitions, and mobile-first breakpoints tailored to your brand colors.

The plugin injects vanilla JavaScript for state management, handling column highlighting on hover. Everything is production-ready with accessibility features, semantic HTML, and clean code architecture—no manual coding required.

Prompt to Reproduce This Feature

Create a block showcasing a “Comparison Table” interaction: hovering a column highlights the entire column. Implement in vanilla JS inside an HTML block (class toggling, state handling). In the post, explain the HTML structure, recommended CSS approach, accessibility considerations, and pitfalls.
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