Last post Sep 01, 2016 07:24 AM by Fei Han - MSFT
Aug 24, 2016 06:43 PM|sudip_inn|LINK
Aug 24, 2016 07:31 PM|ryanbesko|LINK
Yes. Is called CSS Override:
Sep 01, 2016 07:24 AM|Fei Han - MSFT|LINK
Is it possible to inject style or enhance existing style of a CSS class from other CSS class.
You could specify multiple CSS classes to an element through the "class" attribute, you could inject style or enhance existing style of a CSS class by define a new CSS class and apply the class to the element.
<div class="existingcssclass newcssclass">
ryanbesko said, if you’d like to override styles, you could refer to this link to know “User override of styles”.