<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>研究滑块拼图的破解方案</title>
    <meta name="description" content="">
    <style>
        html, body {
            padding: 0;
            margin: 0;
        }

        body {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        #canvasBox {
            margin: 12px auto;
        }

        #canvasBox canvas {
            display: block;
            mar