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<!DOCTYPE html> <html lang="en"> <head>     <meta charset="UTF-8">     <meta name="viewport" content="width=device-width, initial-scale=1.0">     <meta http-equiv="X-UA-Compatible" content="ie=edge">     <title>Canvas-Charts</title>     <link rel="stylesheet" href="./main.css"> </head> <body>     <canvas id="pie">      </canvas>     <canvas id="bar">      </canvas>     <script src="main.js"></script>     <button>Wakka Wakka</button> </body> </html>