Buttons not displaying correctly

Hello,

First of all I would like to say this is a great plugin adding great functionality. Admin panel would definitely help though 🙂

I am having a strange issue with the buttons on my site. They don’t show up correctly (please see the first screenshot). First, I thought it was an issue with my theme and that they wouldn’t work permanently. Then I noticed that whenever I resized my window even a little bit, the buttons would display as they should be (please check out the second screenshot now).

I am using Sparkling theme on WP 3.9 and the URL of my website is http://www.markovunchained.com

Screenshots:
https://www.diigo.com/item/image/4r5ng/shi7
https://www.diigo.com/item/image/4r5ng/sctp

https://ww.wp.xz.cn/plugins/ridiculously-responsive-social-sharing-buttons/