wider the selection column and expand column of Table

components/table/demo/expand-children.md

@@ -34,7 +34,6 @@ const columns = [{
   title: 'Address',
   dataIndex: 'address',
   key: 'address',
-  width: '30%',
 }];
 
 const data = [{

components/table/style/index.less

@@ -132,9 +132,11 @@
   }
 
   &-thead > tr > th.@{table-prefix-cls}-selection-column,
-  &-tbody > tr > td.@{table-prefix-cls}-selection-column {
+  &-tbody > tr > td.@{table-prefix-cls}-selection-column,
+  &-expand-icon-th,
+  &-row-expand-icon-cell {
     text-align: center;
-    width: 40px;
+    width: 48px;
   }
 
   &-header {
@@ -406,10 +408,6 @@
     }
   }
 
-  &-expand-icon-th {
-    width: 40px;
-  }
-
   &-row {
     &-expand-icon {
       cursor: pointer;