调整UI

src/components/CodeStructure.vue

@@ -15,7 +15,7 @@
             <vue-nestable v-model="treeData" @change="onLevelChange">
               <template slot-scope="{ item }">
                 <vue-nestable-handle :item="item">
-                  拖
+                  <i class="el-icon-rank icon-s"></i>
                 </vue-nestable-handle>
 
                 <span @click="onNodeClick(item)">{{ item.text }}</span>

src/components/RawComponents.vue

@@ -274,12 +274,13 @@ nav {
   font-size: 32px;
   font-weight: 700;
   color: #4dba87;
-  transform: rotate(-90deg);
+  transform: rotate(-90deg) translateY(29px);
   white-space: nowrap;
   position: absolute;
-  bottom: 11px;
   left: 0;
-  transform-origin: -2% 10%;
+  height: 80px;
+  line-height: 80px;
+  transform-origin: 0% 50%;
 }
 
 .subtitle {
@@ -290,7 +291,6 @@ nav {
 
 .bottom-toolbar {
   flex-grow: 1;
-  position: relative;
   display: flex;
   flex-direction: column-reverse;
   padding: 20px 0;