visual styling changes to staff grading and peer grading, along with additional instances of the use of the baseline variable instead of pixel definitions for padding and margins.

lms/templates/peer_grading/peer_grading_problem.html

@@ -14,7 +14,11 @@
         </div>
 
         <div class="prompt-wrapper">
-            <h2>${_('Prompt')} <a href="#" class="question-header">${_('(Hide)')}</a></h2>
+            <div class="visibility-control visibility-control-rubric">
+                <div class="inner">
+                </div>
+                <span class="section-header section-header-rubric">${_('Hide Prompt')}</span>
+            </div>
             <div class="prompt-information-container">
                 <section>
                 <div class="prompt-container">