Merge pull request #8972 from jolyonb/jolyonb/discussion

Small printing fixes (LMS)

common/lib/xmodule/xmodule/css/capa/display.scss

@@ -431,7 +431,7 @@ div.problem {
     // Hides equation previews in symbolic response problems when printing
     [id^='display'].equation {
       @media print {
-        display:none;
+        display: none;
       }
     }
 
@@ -857,6 +857,9 @@ div.problem .action {
     vertical-align: middle;
     text-transform: uppercase;
     font-weight: 600;
+    @media print {
+      display: none;
+    }
   }
 
   .save {

lms/static/sass/course/courseware/_courseware.scss

@@ -302,7 +302,7 @@ div.course-wrapper {
     }
 
     @media print {
-      padding: 0 2mm;
+      padding: 4mm 2mm 0;
       background: transparent !important;
     }
   }

lms/static/sass/course/layout/_courseware_preview.scss

@@ -5,6 +5,10 @@
   padding: ($baseline*0.75);
   background-color: $gray-l3;
 
+  @media print {
+    display: none;
+  }
+
   .preview-menu {
     @extend %inner-wrapper;
     width: auto;

lms/static/sass/discussion/_discussion.scss

@@ -673,7 +673,6 @@ body.discussion {
 // inline discussion module and profile thread styling
 .discussion-module {
   @extend .discussion-body;
-  @extend %ui-print-excluded;
 
   position: relative;
   margin: $baseline 0;
@@ -1019,6 +1018,10 @@ body.discussion {
   }
 }
 
+.xblock-student_view-discussion {
+  @extend %ui-print-excluded;
+}
+
 // ====================
 
 // post pagination