diff --git a/idea.md b/idea.md
index 249a5a7..ea16ab5 100644
--- a/idea.md
+++ b/idea.md
@@ -115,7 +115,7 @@ dam4.png ---- 存档 59
 [x] 复写 api，rewrite()
 [x] 对 vnode 进行简单的包装，提供出显示文字、显示图片等 api 以及修改 css 的 api
 [] mapDamage 注册
-[] Box 组件右下角添加 resize 按钮
+[x] Box 组件右下角添加 resize 按钮
 [] 被光环加成的怪显示受到了哪些加成
 [x] 鼠标放到光环怪上时高亮它产生的光环
 [] 删除 unplugin-vue-components 插件，换用 import 引入
diff --git a/src/core/fx/shadow.ts b/src/core/fx/shadow.ts
index fb1ed7a..38d7311 100644
--- a/src/core/fx/shadow.ts
+++ b/src/core/fx/shadow.ts
@@ -882,11 +882,6 @@ export class Shadow {
 
         // canvas
         const canvas = this.canvas;
-        canvas.id = `shadow`;
-        canvas.style.display = 'block';
-        canvas.style.position = 'absolute';
-        canvas.style.pointerEvents = 'none';
-        canvas.style.zIndex = Z_INDEX.toString();
 
         // Locations
         this.locations = {
diff --git a/src/plugin/boss/towerBossProjectile.ts b/src/plugin/boss/towerBossProjectile.ts
index da3a325..be124ca 100644
--- a/src/plugin/boss/towerBossProjectile.ts
+++ b/src/plugin/boss/towerBossProjectile.ts
@@ -154,6 +154,8 @@ export class ArrowProjectile extends Projectile<TowerBoss> {
         for (let i = 0; i < 15; i++) {
             ctxVer.fillRect(2, i * 32 + 2, 28, 28);
         }
+        hor.freeze();
+        ver.freeze();
     }
 
     /**
@@ -643,6 +645,8 @@ export class ThunderBallProjectile extends Projectile<TowerBoss> {
         for (let i = 0; i < 15; i++) {
             ctxVer.fillRect(2, i * 32 + 2, 28, 28);
         }
+        hor.freeze();
+        ver.freeze();
     }
 
     /**