Increase advance Search Width on Web Browser and Make Near me button bigger

Hello guys,

1. I would like to make the advanced search form width on PC web browsers wider. I increased it in Geodirectory>>Design but the changhe only seemed to take effect on mobile device ONLY. The advanced search form looks GREAT on mobile device but disappoiting on PC web browser.Kindly advise on how to make the search width the same as it is on mobile device (much wider) . Kindly see attached.

2. I would like to the “Near me” button more visible or bigger. Kindly advise how to customise the “near me” button. Even a change of colour will be more effective.

Kindly see attached.

http://www.seekgh.com

Thanks in Advanced.