diff --git a/src/components/BackToTop/index.vue b/src/components/BackToTop/index.vue
index cbb1f21d..de953821 100644
--- a/src/components/BackToTop/index.vue
+++ b/src/components/BackToTop/index.vue
@@ -25,14 +25,16 @@ export default {
     },
     customStyle: {
       type: Object,
-      default: {
-        right: '50px',
-        bottom: '50px',
-        width: '40px',
-        height: '40px',
-        'border-radius': '4px',
-        'line-height': '45px',
-        background: '#e7eaf1'
+      default: function() {
+        return {
+          right: '50px',
+          bottom: '50px',
+          width: '40px',
+          height: '40px',
+          'border-radius': '4px',
+          'line-height': '45px',
+          background: '#e7eaf1'
+        }
       }
     },
     transitionName: {
diff --git a/src/components/Tinymce/plugins.js b/src/components/Tinymce/plugins.js
index a1a64793..c98d1892 100644
--- a/src/components/Tinymce/plugins.js
+++ b/src/components/Tinymce/plugins.js
@@ -2,6 +2,6 @@
 // Detail plugins list see https://www.tinymce.com/docs/plugins/
 // Custom builds see https://www.tinymce.com/download/custom-builds/
 
-const plugins = ['advlist anchor autolink autoresize autosave bbcode code codesample colorpicker colorpicker contextmenu directionality emoticons fullpage fullscreen hr image imagetools importcss insertdatetime legacyoutput link lists media nonbreaking noneditable pagebreak paste preview print save searchreplace spellchecker tabfocus table template textcolor textpattern visualblocks visualchars wordcount']
+const plugins = ['advlist anchor autolink autoresize autosave code codesample colorpicker colorpicker contextmenu directionality emoticons fullpage fullscreen hr image imagetools importcss insertdatetime legacyoutput link lists media nonbreaking noneditable pagebreak paste preview print save searchreplace spellchecker tabfocus table template textcolor textpattern visualblocks visualchars wordcount']
 
 export default plugins
diff --git a/src/components/UploadExcel/index.vue b/src/components/UploadExcel/index.vue
index a1d56670..f17d8aed 100644
--- a/src/components/UploadExcel/index.vue
+++ b/src/components/UploadExcel/index.vue
@@ -1,6 +1,6 @@
 <template>
   <div>
-    <input id="excel-upload-input" type="file" accept=".xlsx, .xls" class="c-hide" @change="handkeFileChange">
+    <input id="excel-upload-input" ref="excel-upload-input" type="file" accept=".xlsx, .xls" class="c-hide" @change="handkeFileChange">
     <div id="drop" @drop="handleDrop" @dragover="handleDragover" @dragenter="handleDragover">
       Drop excel file here or
       <el-button style="margin-left:16px;" size="mini" type="primary" @click="handleUpload">browse</el-button>
@@ -51,7 +51,9 @@ export default {
     handkeFileChange(e) {
       const files = e.target.files
       const itemFile = files[0] // only use files[0]
+      if (!itemFile) return
       this.readerData(itemFile)
+      this.$refs['excel-upload-input'].value = null // fix can't select the same excel
     },
     readerData(itemFile) {
       const reader = new FileReader()
diff --git a/src/styles/element-ui.scss b/src/styles/element-ui.scss
index b159d16b..dc59591e 100644
--- a/src/styles/element-ui.scss
+++ b/src/styles/element-ui.scss
@@ -73,3 +73,10 @@
      }
    }
  }
+
+//dropdown
+ .el-dropdown-menu{
+  a{
+    display: block
+  }
+}
diff --git a/src/views/documentation/index.vue b/src/views/documentation/index.vue
index d8381592..8d3482d1 100644
--- a/src/views/documentation/index.vue
+++ b/src/views/documentation/index.vue
@@ -19,7 +19,7 @@ export default {
         { title: '实战篇', href: 'https://segmentfault.com/a/1190000009762198' },
         { title: 'vueAdmin-template 篇', href: 'https://segmentfault.com/a/1190000010043013' },
         { title: '自行封装 component', href: 'https://segmentfault.com/a/1190000009090836' },
-        { title: '优雅的使用 icon', href: 'https://segmentfault.com/a/https://segmentfault.com/a/1190000012213278' }
+        { title: '优雅的使用 icon', href: 'https://segmentfault.com/a/1190000012213278' }
       ]
     }
   }
diff --git a/src/views/errorPage/401.vue b/src/views/errorPage/401.vue
index e36c83a2..99eea062 100644
--- a/src/views/errorPage/401.vue
+++ b/src/views/errorPage/401.vue
@@ -65,6 +65,7 @@ export default {
     .pan-img {
       display: block;
       margin: 0 auto;
+      width: 100%;
     }
     .text-jumbo {
       font-size: 60px;