Bug 229806. CSS Errors in DOM Inspector. Patch by Bob Clary <bc@bclary.com> r=timeless, sr=dbaron

extensions/inspector/resources/skin/classic/viewers/dom/columnsDialog.css

@@ -51,10 +51,10 @@
 
 .attr-column-selector,
 .attr-column-selector[focused="true"] {
-  margin: none;
+  margin: 0;
   border: none;
 }
 
 [col-dragging="true"] {
   border: 1px solid ButtonText;
-}
+}

extensions/inspector/resources/skin/modern/viewers/dom/columnsDialog.css

@@ -51,10 +51,10 @@
 
 .attr-column-selector,
 .attr-column-selector[focused="true"] {
-  margin: none;
+  margin: 0;
   border: none;
 }
 
 [col-dragging="true"] {
   border: 1px solid black;
-}
+}