fix style

-import React from 'react';
-import { FormattedMessage } from 'umi/locale';
-import Link from 'umi/link';
-import { PageHeader } from 'ant-design-pro';
-import styles from './index.less';
-
-const PageHeaderWrapper = ({ children, wrapperClassName, ...restProps }) => (
-  <div style={{ margin: '-24px -24px 0' }} className={wrapperClassName}>
-    <PageHeader
-      home={<FormattedMessage id="BLOCK_BAME.menu.home" defaultMessage="Home" />}
-      key="pageheader"
-      {...restProps}
-      linkElement={Link}
-      itemRender={item => {
-        if (item.locale) {
-          return <FormattedMessage id={item.locale} defaultMessage={item.title} />;
-        }
-        return item.title;
-      }}
-    />
-    {children ? <div className={styles.content}>{children}</div> : null}
-  </div>
-);
-
-export default PageHeaderWrapper;

-@import '~antd/lib/style/themes/default.less';
-
-.content {
-  margin: 24px 24px 0;
-}
-
-@media screen and (max-width: @screen-sm) {
-  .content {
-    margin: 24px 0 0;
-  }
-}

@@ -2,7 +2,6 @@ import React, { Fragment } from 'react';
 import { formatMessage, FormattedMessage } from 'umi/locale';
 import { Button, Icon, Card } from 'antd';
 import { Result } from 'ant-design-pro';
-import PageHeaderWrapper from './components/PageHeaderWrapper';
 
 const extra = (
   <Fragment>
@@ -51,16 +50,14 @@ const actions = (
 );
 
 export default () => (
-  <PageHeaderWrapper>
-    <Card bordered={false}>
-      <Result
-        type="error"
-        title={formatMessage({ id: 'BLOCK_BAME.error.title' })}
-        description={formatMessage({ id: 'BLOCK_BAME.error.description' })}
-        extra={extra}
-        actions={actions}
-        style={{ marginTop: 48, marginBottom: 16 }}
-      />
-    </Card>
-  </PageHeaderWrapper>
+  <Card bordered={false}>
+    <Result
+      type="error"
+      title={formatMessage({ id: 'BLOCK_BAME.error.title' })}
+      description={formatMessage({ id: 'BLOCK_BAME.error.description' })}
+      extra={extra}
+      actions={actions}
+      style={{ marginTop: 48, marginBottom: 16 }}
+    />
+  </Card>
 );