添加了_language.scss文件，点击下拉菜单的组件化

+.language-box{
+    padding-bottom: 6px;
+    >a{
+      background-color: rgba(207, 207, 207, 0.3);
+      margin-top: 5px;
+      color: white;
+    }
+    .language-option{
+      display: none;
+      position: absolute;
+      padding: 0;
+      margin: 0;
+      width: 100px;
+      z-index: 105;
+      li{
+        list-style-type: none;
+        background-color: white;
+        height: 35px;
+        line-height: 35px;
+        a{
+          text-decoration: none;
+          padding: 3px;
+          color: $font_s_opa;
+        }
+      }
+      li:hover{
+        background-color: rgb(241, 241, 241);
+      }
+      .active{
+        background-color: $blue_s;
+      }
+      .active:hover{
+        background-color: rgb(241, 241, 241);
+        a{
+          color: white;
+        }
+      }
+    }
+  }
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