Style fixes

lms/static/sass/_discussion.scss

-.discussion-wrapper {
+.container {
+  .discussion-wrapper {
     display: table;
     table-layout: fixed;
     width: 100%;
@@ -17,32 +18,17 @@
       font: inherit;
       vertical-align: baseline;
     }
-}
 
-.discussion-sidebar {
+    .discussion-sidebar {
+
       display: table-cell;
       vertical-align: top;
       width: 27.7%;
       background: #f6f6f6;
       border-radius: 3px 0 0 3px;
       border-right: 3px solid #bcbcbc;
-}
 
-.board-drop-btn {
-  display: block;
-  height: 60px;
-  border-bottom: 1px solid #a3a3a3;
-  border-radius: 3px 0 0 0;
-  background: -webkit-linear-gradient(top, #ebebeb, #d9d9d9);
-  font-size: 16px;
-  font-weight: 700;
-  line-height: 58px;
-  text-align: center;
-  color: #333;
-  text-shadow: 0 1px 0 rgba(255, 255, 255, .8);
-}
-
-.sort-bar {
+      .sort-bar {
         height: 27px;
         border-bottom: 1px solid #a3a3a3;
         background: -webkit-linear-gradient(top, #cdcdcd, #b6b6b6);
@@ -64,8 +50,23 @@
             text-transform: uppercase;
           }
         }
-}
-.post-list {
+      }
+
+      .board-drop-btn {
+        display: block;
+        height: 60px;
+        border-bottom: 1px solid #a3a3a3;
+        border-radius: 3px 0 0 0;
+        background: -webkit-linear-gradient(top, #ebebeb, #d9d9d9);
+        font-size: 16px;
+        font-weight: 700;
+        line-height: 58px;
+        text-align: center;
+        color: #333 !important;
+        text-shadow: 0 1px 0 rgba(255, 255, 255, .8);
+      }
+    }
+    .post-list {
       a {
         display: block;
         height: 36px;
@@ -131,10 +132,13 @@
           }
         }
       }
+    }
+  }
 }
 
 
 
+
 /*** OLD STUFF ***/
 /*** Variables ***/