尝试修复滚动占位

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hoc-element/affix",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "main": "lib/hoc-el-affix.js",
   "description": "📌 Affix 将页面元素固定在可视范围内。",
   "author": "Wisdom <pdsu.wwz@foxmail.com>",

src/components/ScrollAffix/index.vue

@@ -70,8 +70,8 @@ export default {
 
       const instanceRect = this.getInstanceRect()
       this.stylePlaceHolder = {
-        width: instanceRect.width,
-        height: instanceRect.height,
+        width: `${instanceRect.width}px`,
+        height: `${instanceRect.height}px`
       }
     },
     beforeListener () {

src/main.js

@@ -9,7 +9,7 @@ if (typeof window !== 'undefined' && window.Vue) {
 }
 
 export default {
-  version: '0.0.3',
+  version: '0.0.4',
   install,
   HocElAffix
 }