Namespaces and Indices
Avoid using reserved strings for HTML ids, classes and attributes:
- System generated IDs and classes always start with the prefix fx_
- System generated data attributes start with the prefix data-fx-
You should never use these prefixes within your HTML.
HTML elements with z-index
The span of z-indexes between 1 and 1,000 and above 2,000 should be reserved for the pixolino toolbars. In other words: you are restricted to use values within the span between 1,001 and 2,000 in your CSS.