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Custom CSS Code for Confluence provides a macro that allows you to style Confluence content with your own CSS code. To make use of the macros click the “Insert” / “+” Button in the edit mode and select the “Custom CSS Code” macro. You can now enter your Confluence content as macro body and add your custom CSS code in the macro options. The macro options also provide a setting called “Disable Confluence Styles” which disables all (default) Confluence styles, i.e. the content is only styled with your custom CSS code.
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