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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Include Canvas in HTML document!</title> </head> <body> <canvas id="demoCanvas" width="400" height="200" style="border: 2px solid #000">Sorry, Your browser doesn't support Canvas tag!</canvas> <script> var cnvs = document.getElementById("demoCanvas"); var ctx = cnvs.getContext("2d"); </script> </body> </html>