add an option to use old hiresfix width/height behavior

add a visual effect to inactive hires fix elements

style.css

@@ -670,6 +670,10 @@ footer {
     min-width: auto;
 }
 
+.inactive{
+    opacity: 0.5;
+}
+
 /* The following handles localization for right-to-left (RTL) languages like Arabic.
 The rtl media type will only be activated by the logic in javascript/localization.js.
 If you change anything above, you need to make sure it is RTL compliant by just running