iOS の page_html/css_WEB-ITnose にジャンプした後、左側のナビゲーション バーのテキストと矢印の色を変更します。

LoginViewController *loginViewController =[[ LoginViewController alloc] init];
UINavigationController *nav=[[UINavigationController alloc]initWithRootViewController:loginViewController];

UIButton *leftBtn = [UIButton buttonWithType:UIButtonTypeCustom ];

leftBtn.frame = CGRectMake(0, 0, 70, 37); leftBtn.titleLabel.font=[UIFont systemFontOfSize:25.0];
[leftBtn setTitle:@"取消" forState:UIControlStateNormal];
[leftBtn addTarget:self action:@selector(dismissController) forControlEvents:UIControlEventTouchUpInside];

loginViewController.navigationItem.leftBarButtonItem =[[UIBarButtonItem alloc] initWithCustomView:leftBtn];
[self.navigationController presentViewController:navアニメーション:YES完了:nil];

更改箭头颜色:
self.navigationController.navigationBar.tintColor = [UIColor WhiteColor];