QR codes are usually associated with ASCII text ... To start, he first wrote Snake to run in a web browser using HTML, CSS, and JavaScript, which was able to fit in the available space.

Instead of doors that open into space or stairs that go nowhere, websites are littered with commented-out HTML, inline styles and unused CSS rules ... setup easier with QR codes or NFC.

New phishing campaigns attempt to evade detection by constructing rogue QR ... HTML code and using other techniques. “Wherever white patches are needed in the QR code, cascading style sheet (CSS ...

Backdooms is a compressed, self-extracting program encoded entirely within a single QR code. When scanned, it launches an infinitely generated HTML environment resembling Doom-style corridors ...