样式优化

style/css/index.css

@@ -158,16 +158,21 @@
 .dropdown-panel {
     display: none;
     position: absolute;
-    background-color: #f9f9f9;
+    right: 20px;
+    padding: 12px;
+    background-color: #fff;
     min-width: 160px;
-    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.2);
+    border-radius: 4px;
+    box-shadow: 0px 3px 8px 0px rgba(0, 0, 0, 0.16);
     z-index: 1;
 }
 
 /* Dropdown 面板中的链接 */
 .dropdown-panel a {
     color: black;
-    padding: 12px 16px;
+    border-radius: 2px;
+    padding: 7px 10px;
+    background: #F6F7FA;
     text-decoration: none;
     display: block;
 }