- Custom CSS injected via the code editor
- Bespoke typography with self-hosted or Google fonts
- Custom section styling per template
- Custom header, footer and mobile menu
- Advanced animations via JavaScript injection
How far customisation can go
With Custom CSS + Code Injection, most visual limitations disappear — custom headers, animated hero sections, colour theming, typography scales, custom form styling and interactive elements. What we can't do: change the underlying template engine or add server-side logic.
Keeping customisations upgrade-safe
We namespace all custom CSS with a project prefix, keep a documented codebase in Git, and version every code injection so future Squarespace updates don't overwrite work. Your team can safely edit content without touching the customisations.
What's included
Frequently asked questions
Rarely — Squarespace maintains strong backwards compatibility. Well-namespaced CSS and defensive JavaScript survive updates for years.
Yes, but we always recommend upgrading to 7.1 first — 7.0 is legacy and less flexible.
Ready to start your Squarespace project?
Book a free 30-minute strategy call. We'll audit your current setup, share a tailored plan, and quote transparently.
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