I have about 10 site collections on SharePoint 2016 on-prem that I want to brand with our custom .css. I have the .css working great in one of the site collections, but I'm curious about how to apply to the rest of the site collections.
Here's how I link the .css in my master page :
<link rel="stylesheet" type="text/css" href="<% $SPUrl:~SiteCollection/Style Library/Susan.css%>" runat="server"/>
Is there a way to use the .css across site collections?