elfinh on "[Plugin: Ni WooCommerce Product Enquiry] Form questions not align"

Please help me,

Why form questions are not align accordingly?
Please see the screenshot

Thanks

https://wordpress.org/plugins/ni-woocommerce-product-enquiry/

[url=http://postimg.org/image/pmm65xt1n/][img]http://s33.postimg.org/pmm65xt1n/Screenshot_2016_06_12_21_44_23.jpg[/img][/url]