Mobile Friendly

Hi there,
I am having troubles with the calculate shipping drop down boxes when using a mobile device. When the customers are using a mobile device to place orders, the calculate shipping country/province/postal code are squished to one side almost completely gone. The postal code box is so small you cant even see what you are entering. I need this so customers either get their shipping costs or potentially qualify for local pickup, without having to use a computer all the time
Thank so much for your help!

https://wordpress.org/plugins/woocommerce/