The infinite canvas is the idea that the size of a digital comics page is theoretically infinite, and that online comics are therefore not limited by conventional page sizes. An artist could conceivably display a complete comics story of indefinite length on a single "page". Scott McCloud introduced the concept in his book Reinventing Comics.
The infinite canvas has been used in comics such as Dominic Deegan: Oracle for Hire, where artists are easily able to change their standard format from one line to two when desired. Likewise, Megatokyo made a smooth transition from traditional four-panel comic strip to full-page graphic novel. Webcomics such as Narbonic take advantage of the medium on occasion for special effects (e.g. the time-shift effect in "Dave Davenport Has Come Unstuck in Time"), and even sometimes use the "gradualism" effect McCloud describes.