In one embodiment, a method includes receiving a browser-independent cascading style sheet that conforms to a CSS standard, and automatically modifying the browser-independent CSS to incorporate different CSS related features of various browsers. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individual diode laser subassembly output beams do not interfere with one another. The function performed by the encoding unit is selected such that over time the encoded output bit stream comprises substantially white noise.