SharePoint Online - Mapping Masterpage Directory

If the URL is this:
https://COMPANYNAME.sharepoint.com/sites/SITENAME/_catalogs/masterpage/

The networked mapped location is this:
\\COMPANYNAME.sharepoint.com@ssl@443\sites\SITENAME\_catalogs\masterpage

Gotchas:

• Internet Explorer must have the site in the trusted intranet zone. Discuss with network administrator as this may involve editing group policy.
• You must sign into the site with Internet Explorer, and may have to allow IE to remember automatic login.

SharePoint Online - Bootstrap Resources

ShareBoot - http://www.topsharepoint.com/shareboot-responsive-sharepoint-2013-theme#comment-142954

BindTuning - http://www.bindtuning.com/

Responsive SharePoint

• https://responsivesharepoint.codeplex.com/
• http://bastiaanjacobs.nl/2014/01/30/sharepoint-2013-responsive-mpb-bootstrap/ 

Making seattle.master responsive - http://blog.sharepointexperience.com/2015/03/making-seattle-master-responsive/

Avoid CSS Ricochet-
https://melcher.it/2016/03/bootstrap-sharepoint-online-avoid-css-ricochet/

SharePoint Online - Promoted Links Nuances

1. By default it will create a very limited view of the tiles that only spans horizontally. It will be limited to a maximum of 30 items. You also can not modify this view. To get around this maximum item limitation create a NEW standard view. Modify the new view to meet your needs.
   
2. The tiles will only scroll horizontally. A simple fix for this is to add the following CSS to a custom page via a script webpart. This will target the promoted links webpart by hiding the arrow navigation and forcing the tiles to be a bit more responsive.
   
   .ms-promlink-header{
   display:none;
   }
   .ms-promlink-body {
   width: 100%;
   }