WP-Polls button not visible

Previous recorded issues by someone

I changed themes on my site and now the vote button is not visible. I’m trying to figure out how to change its color, but can’t?

Please let me know!

http://www.shorty-stories.com

Thanks

http://ww.wp.xz.cn/extend/plugins/wp-polls/

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Here’s my fix on flat bootstrap theme

From this:

/*.wp-polls .Buttons {
border:1px solid #c8c8c8;
background-color: #f3f6f8;*/

to this:

.wp-polls .Buttons {
border:1px solid #8e8461;
background-color: #00000;