Test 1: Column Styling Removed
Expected: Columns should NOT have borders, padding, or background colors. They should be invisible containers.
Instructions: Click "Apply 2 Columns" - you should see the content flow into 2 columns without any visual styling on the columns themselves.
Test 2: Vertical Spacing Consistency
Expected: Column containers should have 1em vertical margin, matching other block elements.
Instructions: Apply columns and check that spacing between elements looks consistent.
Test 3: Content Splitting Across Columns
Expected: When creating columns with selected content, the content should be distributed across all columns, not just placed in the first column.
Instructions: Select the 6 paragraphs below and click "Apply 3 Columns" - paragraphs should be distributed (2 per column).