wordpress custom styles show on localhost but not on remote server

//add custom style dropdown to the editor
add_filter( 'mce_buttons_2', 'my_mce_buttons_2' );

function my_mce_buttons_2( $buttons ) {
    array_unshift( $buttons, 'styleselect' );
    return $buttons;
}

add_filter( 'tiny_mce_before_init', 'my_mce_before_init' );

function my_mce_before_init( $settings ) {

    $style_formats = array(
      array(
        'title' => 'Button',
        'selector' => 'a',
        'classes' => 'button'
      ),
        array(
          'title' => 'Callout Box',
          'block' => 'div',
          'classes' => 'callout',
          'wrapper' => true
        ),
        array(
          'title' => 'Bold Red Text',
          'inline' => 'span',
          'styles' => array(
            'color' => '#f00',
            'fontWeight' => 'bold'
          )
        ),
        array(
          'title' => 'circle image',
          'selector' => 'img',
          'classes' => 'img-circle'
        ),
        array(
          'title' => 'center div',
          'selector' => 'div',
          'classes' => 'centerit'
        ),
        array(
          'title' => 'content-header on h3',
          'selector' => 'h3',
          'classes' => 'content-header'
          ),
        array(
          'title' => 'responsive image',
          'selector' => 'img',
          'classes' => 'img-responsive'
          ),
        array(
          'title' => 'rounded corners image',
          'selector' => 'img',
          'classes' => 'img-rounded'
          ),
        array(
          'title' => 'thumbnail image',
          'selector' => 'img',
          'classes' => 'img-thumbnail'
          ),
        array(
          'title' => 'opening paragraph',
          'selector' => 'p',
          'classes' => 'open-paragraph'
          )

    );

    $settings['style_formats'] = json_encode( $style_formats );

    return $settings;

}

add_action( 'admin_init', 'add_my_editor_style' );

function add_my_editor_style() {
  add_editor_style();
}

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