Tab content formatting
Tabs does not apply any formatting or styling to tab content.
All tab content is rendered exactly as it is provided. The Tabs app does not modify the content in any way, and it does not automatically apply colors, font families, font sizes, borders, margins, padding, table widths, or any other styling.
All tab content styling is inherited from the theme, unless it’s overridden by formatting applied with the rich text editor.
Content copied from a webpage, document, PDF, or other source will try to retain its source formating, including font sizes, font families, colors, and spacing, when it's pasted into Shopify's rich text editor.