fixed ie banner showing outside of courseware bug

lms/static/sass/base/_base.scss

@@ -185,5 +185,22 @@ mark {
   }
 }
 
+.ie-banner {
+  display: none;
+  max-width: 1140px;
+  min-width: 720px;
+  margin: auto;
+  @include border-radius(0 0 3px 3px);
+  background: #f4f4e0;
+  color: #3c3c3c;
+  padding: 5px 20px 8px;
+  font-size: 13px;
+  text-align: center;
+
+  strong {
+    font-weight: 700;
+  }
+}
+
 
 

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

@@ -168,21 +168,4 @@ header.global.slim {
     font-weight: bold;
     letter-spacing: 0;
   }
-}
-
-.ie-banner {
-  display: none;
-  max-width: 1140px;
-  min-width: 720px;
-  margin: auto;
-  @include border-radius(0 0 3px 3px);
-  background: #f4f4e0;
-  color: #3c3c3c;
-  padding: 5px 20px 8px;
-  font-size: 13px;
-  text-align: center;
-
-  strong {
-    font-weight: 700;
-  }
 }

lms/templates/navigation.html

@@ -82,7 +82,9 @@ site_status_msg = get_site_status_msg()
   %endif
   </nav>
 </header>
+% if course:
 <div class="ie-banner"><strong>Warning:</strong> Your browser is not fully supported. We strongly recommend using <a href="https://www.google.com/intl/en/chrome/browser/" target="_blank">Chrome</a> or <a href="http://www.mozilla.org/en-US/firefox/new/" target="_blank">Firefox</a>.</div>
+% endif
 
 %if not user.is_authenticated():
   <%include file="login_modal.html" />