Content License: Creative Commons Attribution Non Commercial Share Alike 4.0 International (CC-BY-NC-SA-4.0)Credit must be given to the creatorOnly noncommercial uses of the work are permittedAdaptations must be shared under the same termsJupyter NotebookDownloadsDownloadpractice : a dynamic gridThierry ParmentelatJune 1, 2025practising JSpractice : blinking backgroundpractising JSpractice : on codepen