Shopify how-to June 30, 2026 3 min read
How to Style Shopify Size Charts with Custom CSS
CSS variables. Match brand. No theme edits.
CSS Variables Available
--tsg-primary button + accent color--tsg-bg popup background--tsg-text primary text color--tsg-border table + popup border--tsg-radius border radius (default 12px)--tsg-font font family (defaults to theme inherit)
Where to Paste
App settings → Appearance → Custom CSS field. Paste your overrides. Saves immediately.
FAQs
Customize styling?
CSS variables.
Theme edits required?
No.
Brand-perfect size charts
Tailor Size Guide ships with simple CSS variables.