make indentation the same

lms/static/sass/_discussion.scss

@@ -188,12 +188,6 @@ $discussion_input_width: 60%;
 }
 
 
-body 
-{ 
-        background-color: White;
-    font-family: sans-serif;
-}
-
 .wmd-panel
 {
   margin-left: 25%;
@@ -214,6 +208,7 @@ body
   width: 100%;
   background-color: Gainsboro;
   border: 1px solid DarkGray;
+  font-style: normal;
 }
 
 .wmd-preview 
@@ -277,9 +272,6 @@ body
   left: 300px;
 }
 
-
-
-
 .wmd-prompt-background
 {
   background-color: Black;