fixed 【下拉菜单】修改样式。删除无用 rc-tooltip

Author: fengjingxuan8

package.json

@@ -49,7 +49,6 @@
     "rc-table": "7.28.1",
     "rc-trigger": "^5.2.10",
     "rc-util": "5.25.2",
-    "rc-tooltip": "~5.2.0",
     "react": "16.12.0",
     "react-dom": "16.12.0",
     "react-drag-listview": "^0.2.0",

src/components/c-dropdown/demos/simple.md

@@ -49,7 +49,7 @@ export default class DropdownDemo extends React.Component {
                         </Dropdown.Menu>
                     }>
                     <div>
-                        <span>基础下拉菜单</span>
+                        <span>基础下拉菜单,带分割线</span>
                         <Icon type="down" />
                     </div>
                 </Dropdown>

src/components/c-dropdown/index.less

@@ -5,13 +5,6 @@
 @primary-active-bg: @blue-6;
 @primary-disabled-bg: @gray-5;
 
-.@{dropdown-prefix-cls}-menu-area {
-  box-shadow: 0px 4px 24px 0px rgba(0, 0, 0, 0.1),
-    0px 2px 8px 0px rgba(0, 0, 0, 0.04);
-  border-radius: 2px;
-  background: #fff;
-  width: fit-content;
-}
 .@{dropdown-prefix-cls} {
   color: #5280ff;
   display: flex;
@@ -28,6 +21,14 @@
 
   z-index: 100;
 
+  &-menu-area {
+    box-shadow: 0px 4px 24px 0px rgba(0, 0, 0, 0.1),
+      0px 2px 8px 0px rgba(0, 0, 0, 0.04);
+    border-radius: 6px;
+    background: #fff;
+    width: fit-content;
+  }
+
   &:hover,
   &:focus,
   &:active {