ASCII art is a technique that uses computer-printable characters (usually the 96 printable characters in the ASCII code) to represent images. Traditional ASCII art is based on HTML code; however, due to differences between browsers, ASCII art that displays perfectly in one browser may become distorted in another. In the Web 2.0 era, more focus should be placed on CSS, as current mainstream browsers have very consistent support for CSS. Using CSS to implement ASCII art can better maintain compatibility between different browsers.