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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>检测浏览器是否支持html5</title> <style type="text/css"> .myCanvas{ width:200px; height:200px; border:1px solid #000; } </style> </head> <body> <canvas class="myCanvas"> 该浏览器不支持HTML5的画布标记 </canvas> </body> </html>