模糊参数设置

src/components/course/course-ware.vue

@@ -85,8 +85,8 @@ export default {
       canvas.style.display = 'block';
       canvas.style.width = '100%';
       if (!this.visible) {
-        canvas.style['-webkit-filter'] = 'blur(20px)';
-        canvas.style.filter = 'blur(20px)';
+        canvas.style['-webkit-filter'] = 'blur(5px)';
+        canvas.style.filter = 'blur(5px)';
       }
       
       let ctx = canvas.getContext("2d");