diff --git a/pages_order/mine/promotion.vue b/pages_order/mine/promotion.vue
index a501e0b..f200f6f 100644
--- a/pages_order/mine/promotion.vue
+++ b/pages_order/mine/promotion.vue
@@ -105,9 +105,11 @@
 							ctx.drawImage(bgImage,
 							0, 0, bgImage.width, bgImage.height)
 							
+							let size = Math.floor(canvas.width / 3)
+							
 							coderImage.onload = () => {
 								ctx.drawImage(coderImage,
-								canvas.width / 2 - 175, canvas.height / 2 - 100, 350, 350)
+								canvas.width / 2 - (size / 2), canvas.height * 0.6, size, size)
 								this.canvasToTempFilePath()
 							}
 						}