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style 

// Register Style
function gnx_custom_styles() {

	wp_register_style( 'main-style', '/css/style.css', false, '1.0.0' );
	wp_enqueue_style( 'main-style' );

	wp_register_style( 'responsive-style', '/css/responsive.css', false, '1.0.0' );
	wp_enqueue_style( 'responsive-style' );

	wp_register_style( 'bootstrap-select', '/vendor/bootstrap-select/dist/css/bootstrap-select.min.css', false, '1.13.2' );
	wp_enqueue_style( 'bootstrap-select' );

}
add_action( 'wp_enqueue_scripts', 'gnx_custom_styles' );