fix for duplicate drag and drop indicators on studio outline page

cms/static/sass/_shame.scss

@@ -46,12 +46,6 @@
 
 // ====================
 
-// needed for poorly scoped margin rules on all content elements
-.courseware-subsection .sortable-unit-list {
-  margin-bottom: 0;
-}
-
-
 // yes we have no boldness today - need to fix the resets
 body strong,
 body b {

cms/static/sass/views/_outline.scss

@@ -479,12 +479,16 @@
     }
   }
 
+  .courseware-subsection .sortable-unit-list {
+    margin: ($baseline/4) 0 0 0;
+  }
+
   // unit styles
   .courseware-unit {
-    margin: ($baseline/4) 0 0 ($baseline*1.75);
+    margin: -1px 0 0 ($baseline*1.75);
 
     &.add-new-unit {
-      margin-right: ($baseline*1.75);
+      margin: 5px ($baseline*1.75) 0 ($baseline*1.75);
     }
 
     .section-item {

cms/static/sass/views/_subsection.scss

@@ -295,7 +295,7 @@
     .courseware-unit {
       @include font-size(13);
       @include clearfix();
-      margin: ($baseline/4) 0 0 0;
+      margin: -1px 0 0 0;
 
       .section-item {
         @include transition(background $tmg-avg ease-in-out 0);