How do I make CSS overrides for Joomla! components?
RSShanti! includes a feature that allows you to easily create CSS overrides for any Joomla! component or module (3rd party or our own), without losing any of the changes when performing updates.
This is done by adding a .css file named after the component's internal name in the template's css folder. The full path looks as follows:
/templates/rsshanti/css/components/com_component-name.css