SASS refactoring after code review.

TNL-900

openassessment/templates/openassessmentblock/staff_debug/student_info.html

@@ -41,7 +41,7 @@
             <div class="ui-staff ui-toggle-visibility is--collapsed">
                 <h2 class="staff-info__title ui-staff__title ui-toggle-visibility__control">
                     <i class="ico icon-caret-right"></i>
-                    <span class="staff-info__collapse__title">{% trans "Remove submission from peer grading" %}</span>
+                    <span class="staff-info__title__copy">{% trans "Remove submission from peer grading" %}</span>
                 </h2>
 
                 <div class="staff-info__cancel-submission__content ui-toggle-visibility__content">

openassessment/xblock/static/sass/oa/elements/_staff.scss

@@ -135,21 +135,21 @@
 
 }
 
-// UI cancel submission.
+// UI - cancel submission (action)
 .openassessment__staff-info__cancel__submission {
   margin-bottom: ($baseline-v) !important;
 
   .staff-info__cancel-submission__content {
 
-    textarea {
+    .cancel_submission_comments {
       width: 100%;
-      height: ($baseline-v*5);
+      min-height: ($baseline-v*5);
       text-align: left;
     }
 
-    ul.list--actions {
+    .list--actions {
       .action--submit {
-        margin: ($baseline-v/2) 0px;
+        margin: ($baseline-v/2) 0;
       }
     }
 

openassessment/xblock/static/sass/oa/utilities/_shame.scss

@@ -97,7 +97,7 @@
 
   .list--actions {
     list-style: none !important;
-    @include padding-left(0);
+    @include padding-left(0 !important);
     text-indent: 0 !important;
 
     li {