Custom Head, JavaScript and Cascading Style Sheets (CSS)
From: Using Back-End
Head
To add your custom content to the website head tag, go to the Settings/Head and put your content into the Custom Head box.
JavaScript (JS)
You can add your Java Scripts to the main JS file. To do that, go to the Settings/Head and put your content into the Custom JS box.
Cascading Style Sheets (CSS)
You can add your CSS classes to the main CSS file. To do that, go to the Settings/Head and put your content into the Custom CSS box.
These contents will be added to the default theme files.