Be aware, mistakes made here can break your site and we don’t provide support for custom code implementation. 

1. To access the Header Code Injection modal for a Campaign Site, navigate to the Design tab and then click "Template" from the grey navigation bar. 

2. On the fly-out, navigate to the Header Code Injection tab and insert your custom CSS inside style tags and scripts! Click "Save".

Developers - you can insert custom CSS styles or scripts into the header of your Campaign Site using the Header Code Injection modal. You can use Bootstrap classes with your HTML.  

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