使用css使表单脚本响应？

we're using an SEO service though upcity.com which requires us to embed a form onto our website. What we're finding is that the form itself doesn't respond all that well on mobile, which really defeats the purpose of what we're trying to do. So I'm looking for any recommendations as to how to possibly modify the script either with CSS potentially or something else.we're using an SEO service though upcity.com wh