adding visual emphasis to self assessment in grade report output

apps/openassessment/xblock/static/css/openassessment.css

@@ -1452,6 +1452,10 @@ hr.divider,
           margin-right: 0; }
         .openassessment .submission__peer-evaluations__questions .answer:nth-child(4n+1) {
           clear: left; } }
+    .openassessment .submission__peer-evaluations__questions .answer.self-assessment {
+      border-radius: 2px;
+      background: #fdfdfd;
+      padding: 10px 20px; }
   .openassessment .submission__peer-evaluations__questions .answer__source {
     display: block;
     color: #aeafb3; }

apps/openassessment/xblock/static/sass/oa/views/_oa-base.scss

@@ -939,6 +939,13 @@
         @include span-columns(3 of 12);
         @include omega(4n);
       }
+
+      // CASE: self assessment
+      &.self-assessment {
+        border-radius: ($baseline-v/10);
+        background: $color-decorative-quinternary;
+        padding: ($baseline-v/2) ($baseline-h/2);
+      }
     }
 
     .answer__source {