dos

Public/static/css/index.css

@@ -5,13 +5,13 @@ body {
   font-family: "Microsoft YaHei";
 }
 
-.page1 canvas {
+.page1 #fireworkCanvas {
   width: 640px;
   height: 1400px;
   z-index: 2;
 }
 
-.page7 #fireworkCanvas,
+.page7 canvas,
 .page7 .posterimg {
   width: 640px;
   height: 1238px;

Public/static/js/common.js

@@ -217,7 +217,7 @@ function init() {
 function onLoad() {
     $('.canvas-block').html('<canvas id="fireworkCanvas"></canvas>');
     fireworkCanvas = document.getElementById("fireworkCanvas");
-    fireworkCtx = canvas.getContext("2d");
+    fireworkCtx = fireworkCanvas.getContext("2d");
     resizeCanvas();
 
     window.requestAnimationFrame(updateWorld);