function row_shortcode($atts, $content = null) {
    $atts = shortcode_atts( array(
        'class' => null,
        'style' => null,
        'style_1024' = null,
        'style_768' = null,
        'style_540' = null
    ), $atts );

    $uniq_id = uniqid();

    $out = '';

    if (
        (isset($atts['style_1024']) && $atts['style_1024'] != '') ||
        (isset($atts['style_768']) && $atts['style_768'] != '') ||
        (isset($atts['style_540']) && $atts['style_540'] != '')
    ) {
        $out .= '<style type="text/css">';

        if (isset($atts['style_1024']) && $atts['style_1024'] != '') {
            $out .= 'media only screen and (max-width:1024px) {' .
                '#vlad_row_' . $uniq_id . ' {' .
                    $atts['style_1024'] .
                '}' .
            '}';
        }

        if (isset($atts['style_768']) && $atts['style_768'] != '') {
            $out .= 'media only screen and (max-width:768px) {' .
                $atts['style_768'] .
            '}';
        }

        if (isset($atts['style_540']) && $atts['style_540'] != '') {
            $out .= 'media only screen and (max-width:540px) {' .
                $atts['style_540'] .
            '}';
        }

        $out .= '</style>';
    }



    return "<div id='vlad_row_{$uniq_id}' class='row ".$atts['class']."' style='".$atts['style']."'><div class='row_width'><div class='row_margin clearfix'>".do_shortcode($content)."</div></div></div>";
}