This code I used in CSS to hide o365 bar.
a#o365_subLink_ViewAccount {
display: none !important;
{
I would like advice to how I can hide inside using SP Designer 2013 which master pages would I need to edit.
This code I used in CSS to hide o365 bar.
a#o365_subLink_ViewAccount {
display: none !important;
{
I would like advice to how I can hide inside using SP Designer 2013 which master pages would I need to edit.
No need to edit your master page especially in SharePoint online, What should you do is to add your CSS code in CSS file and upload it to style library or site assets. then apply it to your site as the following:
Alternate CSS URL Specify a CSS file to be used by this site and all sites that inherit from it:Reset all subsites to inherit this alternate CSS URL if you need to apply CSS for all subsites.