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Child theme (BigCommerce)

Note that this doc refers to Shoptimizer for BigCommerce. If you are looking for the WooCommerce version go here.

If you’re making modifications to the core Shoptimizer for BigCommerce theme then we recommend using a child theme.

You can download a child theme for Shoptimizer for BigCommerce here.

This child theme will work with any version of Shoptimizer for BigCommerce. You don’t need to update it if the parent theme is updated!

Small CSS tweaks

If however, you’re making just small CSS adjustments, these can go into Appearance > Customize > Additional CSS.

Custom functions

If you need something simple for custom functions or javascript we recommend using the Code Snippets plugin.


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