Never mind. I found my problem. But for others who may stumble here...
From the latest release notes:
QuoteA new "Interface administrators" group was added, which has the ability to edit sitewide CSS/JS and the CSS/JS of other users. By default, no other group (not even "Administrators") has this capability anymore.<br>
To add this group to a user, including the administrator, go to
Special Pages
User Rights
Enter the user name, then Load Groups.
Now select "interface administrator" and click on "Save user groups"
In your browser, open MediaWiki:Common.css
;Here is my Common.css file:
/* CSS placed here will be applied to all skins */
/* color was a dark green: #5a7425 */
/* #004377 is a dark blue */
body { color: #004377; font-size: 20px; font-family: "times new roman"; }
/* Reduce the line height slightly. Was 1.6 */
.mw-body-content{
line-height: 1.2;
}
/* Move the [edit] links to the right column */
.mw-editsection {
position: absolute;
right: 0px;
}