In addition to the benefits for the user, this style sheet reduces the number of pages printed, and therefore indirectly minimizes the website’s ecological footprint. It should be as streamlined as possible and employ an ink-light typeface e.g. Century Gothic. Also consider hiding the header, footer, menu and sidebar, as well as deleting all images except those needed for content.

JavaScript generates temporary variables in the background when performing variable concatenation. Due to this, some syntax is more efficient than others and uses less RAM.