Minor changes to metadata style in MD theme

boards/static/css/md/base_page.css

@@ -53,12 +53,11 b' html {'
 }
 
 .metadata {
-    padding: 5px;
+    padding-top: 5px;
     margin-top: 10px;
-    border: solid 1px #666;
+    border-top: solid 1px #666;
     font-size: 0.9em;
     color: #ddd;
-    display: table;
 }
 
 .navigation_panel, .tag_info {
@@ -352,4 +351,4 b' input[type="submit"]:hover {'
     padding: 5px;
     font-weight: bolder;
     color: #eee;
-}
  No newline at end of file
+}