Fix table wrapper float layout, close #4945

components/table/Table.tsx

@@ -879,7 +879,7 @@ export default class Table<T> extends React.Component<TableProps<T>, any> {
       ? `${prefixCls}-with-pagination` : `${prefixCls}-without-pagination`;
 
     return (
-      <div className={`${className} clearfix`} style={style}>
+      <div className={classNames(`${prefixCls}-wrapper`, className)} style={style}>
         <Spin
           spinning={loading}
           className={loading ? `${paginationPatchClass} ${prefixCls}-spin-holder` : ''}

components/table/style/index.less

@@ -4,6 +4,10 @@
 @table-prefix-cls: ~"@{ant-prefix}-table";
 @table-head-background-color: @background-color-base;
 
+.@{table-prefix-cls}-wrapper {
+  .clearfix;
+}
+
 .@{table-prefix-cls} {
   font-size: @font-size-base;
   color: @text-color;