Share Buttons getting cut off – CSS?

Hello,

I am using this plugin on my website. Works great. The only issue I am having is when I go to a page the share buttons look to be getting cut off. I used the inspector to see where in the CSS I can adjust this but it looks like it’s using a external css file? Is this something I can fix or can be updated within the plugin?

You can see what I am talking about at http://www.ussailing.org/about-us

Thanks
Bryan

https://ww.wp.xz.cn/plugins/wp-socializer/