Woocommerce - checkout wrong state size.

hey, Im new here.

I have a issue with state field on my Electro installation.
I did some test changing the theme, for example, I used Storefront and every work fine but with Electro it’s impossible to select the correct option.

I attached the example in this link.

If somebody have an idea., maybe adding extra css?

something like:

.woocommerce form .form-row select.state_select {
width: 100% !important;
position: static !important;
border: 1px solid !important;
padding: 0px 20px !important;

Thanks in advance.

Regards, Mario.