Gutenberg blocks don’t render correctly or lose styling inside the theme.
Theme Breaks Gutenberg Blocks
Key Points: Native WordPress blocks look broken, misaligned, or completely unstyled inside your theme.
You add a columns block — but it stacks vertically. Buttons lose colors, spacing collapses, and your content looks nothing like the editor preview. That’s your theme ignoring Gutenberg standards.
🤕 Why It Breaks
- Theme lacks
add_theme_support( 'wp-block-styles' ) - No block editor CSS or editor-style support
- Custom CSS resets or overrides block styling
🔧 How to Restore Order
- Ensure theme supports core block features
- Enqueue block styles using
add_editor_style() - Use a child theme to re-style blocks if necessary
📦 Bonus
Modern themes are Gutenberg-first — switch if your layout is mostly block-based. Otherwise, expect constant styling patchwork.