diff --git a/public/assets/css/app.css b/public/assets/css/app.css
index 847e38c..7dd6e8a 100644
--- a/public/assets/css/app.css
+++ b/public/assets/css/app.css
@@ -155,7 +155,7 @@ section {
   margin: 10px 8px;
   color: #333;
   position: relative;
-  background-color: rgba(0, 0, 0, 0.03);
+  background-color: rgb(238,238,238);
   border: 1px solid #f0f0f0;
   border-radius: 2px;
   display: flex;
@@ -228,6 +228,6 @@ section {
 }
 
 .CodeMirror-scroll, .preview-wrapper {
-    overflow: unset!important;
-    overflow-y: scroll!important;
+    overflow: unset;
+    overflow-y: scroll;
 }
\ No newline at end of file
diff --git a/src/assets/images/favicon.png b/src/assets/images/favicon.png
new file mode 100644
index 0000000..e151dec
Binary files /dev/null and b/src/assets/images/favicon.png differ
diff --git a/src/assets/less/theme.less b/src/assets/less/theme.less
index 3815277..3f61906 100644
--- a/src/assets/less/theme.less
+++ b/src/assets/less/theme.less
@@ -20,13 +20,18 @@
         background-color: @nightCodeMirrorColor;
         box-shadow: inset 0 0 0 1px rgba(100, 37, 37, 0.102);
     }
-    .preview {
-        background-color: @nightPreviewColor;
-        box-shadow: 0 0 70px rgba(0, 0, 0, 0.3);
-    }
-    .preview-wrapper {
-        background-color: @nightCodeMirrorColor;
-        box-shadow: inset 0 0 0 1px rgba(233, 231, 231, 0.102);
+    .output_night {
+        .preview {
+            background-color: @nightPreviewColor;
+            box-shadow: 0 0 70px rgba(0, 0, 0, 0.3);
+        }
+        .preview-wrapper {
+            background-color: @nightCodeMirrorColor;
+            box-shadow: inset 0 0 0 1px rgba(233, 231, 231, 0.102);
+        }
+        .code-snippet__fix {
+            background-color: rgb(238,238,238);
+        }
     }
     .cm-s-style-mirror .CodeMirror-matchingbracket {
         color: @nightWhiteColor!important;
@@ -60,7 +65,7 @@
             color: @nightWhiteColor;
         }
     }
-    .insert__dialog, .about__dialog {
+    .insert__dialog, .about__dialog, .reset__dialog {
         .el-dialog {
             background-color: @nightBgColor;
         }
diff --git a/src/components/codeMirror/header.vue b/src/components/codeMirror/header.vue
index c0bff92..5924ae8 100644
--- a/src/components/codeMirror/header.vue
+++ b/src/components/codeMirror/header.vue
@@ -64,6 +64,7 @@
             <div class="mode__switch" v-if="!nightMode" @click="themeChanged"></div>
             <div class="mode__switch mode__switch_black" v-else @click="themeChanged"></div>
         </el-tooltip>
+        <resetDialog :showResetConfirm="showResetConfirm" @confirm="confirmReset" @close="cancelReset"/>
       </el-container>
 </template>
 
@@ -81,6 +82,7 @@ import {
 } from '../../scripts/converter'
 import config from '../../scripts/config'
 import DEFAULT_CSS_CONTENT from '../../scripts/themes/default-theme-css'
+import resetDialog from '../codeMirror/resetDialog'
 import {mapState, mapMutations} from 'vuex'
 export default {
     name: 'editor-header',
@@ -88,11 +90,15 @@ export default {
         return {
             config: config,
             citeStatus: false,
+            showResetConfirm: false,
             selectFont: '',
             selectSize: '',
             selectColor: ''
         };
     },
+    components: {
+        resetDialog
+    },
     computed: {
         effect() {
             return this.nightMode ? 'dark' : 'light'
@@ -165,28 +171,32 @@ export default {
         },
         // 复制到微信公众号
         copy() {
-            let clipboardDiv = document.getElementById('output')
-            solveWeChatImage()
-            this.setHtml(solveHtml())
+            this.$emit('startCopy');
+            setTimeout(() => {
+                let clipboardDiv = document.getElementById('output')
+                solveWeChatImage()
+                this.setHtml(solveHtml(this.nightMode))
 
-            clipboardDiv.focus()
-            window.getSelection().removeAllRanges()
-            let range = document.createRange()
+                clipboardDiv.focus()
+                window.getSelection().removeAllRanges()
+                let range = document.createRange()
 
-            range.setStartBefore(clipboardDiv.firstChild)
-            range.setEndAfter(clipboardDiv.lastChild)
-            window.getSelection().addRange(range)
-            document.execCommand('copy')
-            // 输出提示
-            this.$notify({
-                showClose: true,
-                message: '已复制渲染后的文章到剪贴板，可直接到公众号后台粘贴',
-                offset: 80,
-                duration: 1600,
-                type: 'success'
-            })
-            clipboardDiv.innerHTML = this.output; // 恢复现场
-            this.$emit('refresh')
+                range.setStartBefore(clipboardDiv.firstChild)
+                range.setEndAfter(clipboardDiv.lastChild)
+                window.getSelection().addRange(range)
+                document.execCommand('copy')
+                // 输出提示
+                this.$notify({
+                    showClose: true,
+                    message: '已复制渲染后的文章到剪贴板，可直接到公众号后台粘贴',
+                    offset: 80,
+                    duration: 1600,
+                    type: 'success'
+                })
+                clipboardDiv.innerHTML = this.output; // 恢复现场
+                this.$emit('refresh');
+                this.$emit('endCopy');
+            }, 350);
         },
         // 自定义CSS样式
         async customStyle () {
@@ -207,26 +217,22 @@ export default {
         },
         // 重置页面
         reset() {
-            this.$confirm('此操作将丢失本地缓存的文本和自定义样式，是否继续?', '提示', {
-                confirmButtonText: '确定',
-                cancelButtonText: '取消',
-                confirmButtonClass: 'el-button--success',
-                cancelButtonClass: 'el-button--success is-plain',
-                type: 'warning',
-                center: true
-            }).then(() => {
-                localStorage.clear()
-                this.clearEditorToDefault();
-                this.editor.focus()
-                this.citeStatus = false;
-                this.statusChanged(false);
-                this.fontChanged(this.config.builtinFonts[0].value)
-                this.colorChanged(this.config.colorOption[1].value)
-                this.sizeChanged(this.config.sizeOption[2].value)
-                this.$emit('cssChanged')
-            }).catch(() => {
-                this.editor.focus()
-            })
+            this.showResetConfirm = true;
+        },
+        confirmReset() {
+            localStorage.clear()
+            this.clearEditorToDefault();
+            this.editor.focus()
+            this.citeStatus = false;
+            this.statusChanged(false);
+            this.fontChanged(this.config.builtinFonts[0].value)
+            this.colorChanged(this.config.colorOption[1].value)
+            this.sizeChanged(this.config.sizeOption[2].value)
+            this.$emit('cssChanged')
+        },
+        cancelReset() {
+            this.showResetConfirm = false;
+            this.editor.focus()
         },
         // 下载编辑器内容到本地
         downloadEditorContent () {
diff --git a/src/components/codeMirror/resetDialog.vue b/src/components/codeMirror/resetDialog.vue
new file mode 100644
index 0000000..90be414
--- /dev/null
+++ b/src/components/codeMirror/resetDialog.vue
@@ -0,0 +1,43 @@
+<template>
+    <el-dialog title="提示" class="reset__dialog" :visible="showResetConfirm" @close="$emit('close')">
+        <div class="text">
+            此操作将丢失本地缓存的文本和自定义样式，是否继续?
+        </div>
+        <div slot="footer" class="dialog-footer">
+            <el-button :type="btnType" plain @click="$emit('close')">取 消</el-button>
+            <el-button :type="btnType" @click="$emit('confirm')" plain>确 定</el-button>
+        </div>
+    </el-dialog>
+</template>
+
+<script>
+import {mapState} from 'vuex';
+export default {
+    props: {
+        showResetConfirm: {
+            type: Boolean,
+            default: false
+        }
+    },
+    computed: {
+        btnType() {
+            return !this.nightMode ? 'success' : 'default';
+        },
+        ...mapState({
+            nightMode: state=> state.nightMode
+        })
+    }
+}
+</script>
+
+<style lang="less" scoped>
+.reset__dialog {
+    text-align: center;
+}
+.text {
+    text-align: center;
+}
+.dialog-footer {
+    text-align: center;
+}
+</style>
\ No newline at end of file
diff --git a/src/scripts/converter.js b/src/scripts/converter.js
index 0f52083..a9f7524 100644
--- a/src/scripts/converter.js
+++ b/src/scripts/converter.js
@@ -13,9 +13,9 @@ export function solveWeChatImage() {
     image.style.height = height;
   }
 }
-export function solveHtml() {
+export function solveHtml(nightMode = false) {
   const element = document.getElementById("output-wrapper");
-  let html = element.innerHTML;
+  let html = element.innerHTML
   let res = "";
   res = juice.inlineContent(
     html,
@@ -25,4 +25,4 @@ export function solveHtml() {
     }
   );
   return res;
-}
+}
\ No newline at end of file
diff --git a/src/view/CodemirrorEditor.vue b/src/view/CodemirrorEditor.vue
index 279a9ed..a20a3d5 100644
--- a/src/view/CodemirrorEditor.vue
+++ b/src/view/CodemirrorEditor.vue
@@ -1,7 +1,7 @@
 <template>
     <div class="container" :class="{'container_night': nightMode}">
         <el-container>
-            <el-header class="editor__header is-dark">
+            <el-header class="editor__header">
                 <editor-header
                     @refresh="onEditorRefresh"
                     @uploaded="uploaded"
@@ -9,6 +9,8 @@
                     @showBox="showBox = !showBox"
                     @showAboutDialog="aboutDialogVisible = true"
                     @showDialogForm="dialogFormVisible = true"
+                    @startCopy="isCoping = true, backLight = true"
+                    @endCopy="endCopy"
                 />
             </el-header>
             <el-main class="main-body">
@@ -17,11 +19,15 @@
                         <textarea id="editor" type="textarea" placeholder="Your markdown text here." v-model="source">
                         </textarea>
                     </el-col>
-                    <el-col :span="12" class="preview-wrapper" id="preview">
-                        <section id="output-wrapper" >
+                    <el-col :span="12" class="preview-wrapper" id="preview" :class="{'preview-wrapper_night': nightMode && isCoping}">
+                        <section id="output-wrapper" :class="{'output_night': nightMode && !backLight}">
                             <div class="preview">
                                 <section id="output" v-html="output">
                                 </section>
+                                <div class="loading-mask" v-if="nightMode && isCoping">
+                                    <div class="loading__img"></div>
+                                    <span>正在生成</span>
+                                </div>
                             </div>
                         </section>
                     </el-col>
@@ -77,6 +83,8 @@ export default {
             showBox: false,
             aboutDialogVisible: false,
             dialogFormVisible: false,
+            isCoping: false,
+            backLight: false,
             timeout: null,
             changeTimer: null,
             source: ''
@@ -232,6 +240,12 @@ export default {
             this.editorRefresh();
             setTimeout(()=> PR.prettyPrint(), 0);
         },
+        endCopy() {
+            this.backLight = false;
+            setTimeout(()=> {
+                this.isCoping = false;
+            }, 800);
+        },
         ...mapMutations(['initEditorState', 'initEditorEntity', 'setWxRendererOptions',
             'editorRefresh', 'initCssEditorEntity'])
     },
@@ -258,4 +272,47 @@ export default {
 .container {
     transition: all .3s;
 }
+.preview {
+    transition: background 0s;
+    transition-delay: .2s;
+}
+.preview-wrapper_night {
+    overflow-y: inherit;
+    position: relative;
+    left: -3px;
+    .preview {
+        background-color: #fff;
+    }
+}
+#output-wrapper {
+    position: relative;
+}
+.loading-mask {
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    width: 376px;
+    height: 101%;
+    padding-top: 1px;
+    font-size: 15px;
+    color: gray;
+    background-color: #1e1e1e;
+    .loading__img {
+        position: absolute;
+        left: 50%;
+        top: 330px;
+        width: 50px;
+        height: 50px;
+        transform: translate(-50%, -50%);
+        background: url('../assets/images/favicon.png') no-repeat;
+        background-size: cover;
+    }
+    span {
+        position: absolute;
+        left: 50%;
+        top: 390px;
+        transform: translate(-50%, -50%);
+    }
+}
 </style>