overflow setting was forcing a border, auto eliminates that and appears to not create bad scrolling behavior on mobile

scss/_layout.scss

@@ -43,13 +43,13 @@
   display: inline-block;
   //-ms-flex: 0 1 auto; // Fix IE10 bug.
   overflow-x: hidden;
-  overflow-y: scroll; // mobile webkit smooth scrolling
+  overflow-y: auto; // mobile webkit smooth scrolling may need scroll, but auto seems to be working and omits the scroll border
   flex-grow: 1;
   -webkit-overflow-scrolling: touch; // mobile webkit smooth scrolling
 
 }
 
-// Pushes content to the other end
+// Pushes flex-based content to the other end (x or y)
 .mdb-layout-spacer {
   flex-grow: 1;
 }