if else elseif shortcode

function single_stat_shortcode( $atts, $content = null  ) {
    extract( shortcode_atts( array(
        'title' => '',
        'icon' => '',
        'amount' => '',
        'border' => 'statsec'
    ), $atts ) );

    $list .='<div class="col-md-2 col-sm-4 col-xs-6 '.$border.'"> ';
if($icon) :
    $list .='<i class="fa fa-'.$icon.' staticon"></i> ';
elseif($amount) :
    $list .='<h3 class="statamnt">'.$amount.'</h3> ';
else :
    $list .='No icon ';
endif;



    $list .='<h5>'.$title.'</h5> ';

    $list .='</div>';


    return $list;
}
add_shortcode('singlestat', 'single_stat_shortcode');