You can configure custom CSS styles on your public website pages. To access the configuration log in to your site then browse to the page on your website you want to edit.

Now click the settings/cog icon in the top right-hand corner, then click the configure this page item.

Now go to the advanced tab

Add the CSS you want to include on the page in the "Custom CSS Styles" box. Note that you DO NOT need to include the style tags when you add the scripts as in the screenshot below. Please ensure your CSS is valid as this can cause issues with our pages if invalid CSS code is used

Now click "Save" or "Save and reload the page". The page needs to be reloaded for the CSS styles to load.

If you need any corresponding HTML on the page for the CSS to run against then use the page editor with the code icon on the toolbars </>

If you also need to add custom scripts then enter those in the Custom Scripts box. You DO need to add opening and closing scripts tags here. For more info on adding custom styles see this guide