Feature Slider Hover Color

I have the following custom CSS working to change the background color of the feature slider text box. However, when you hover over the text box, the color changes to black. How do I change the hover color? URL is http://4xq.ca2.myftpupload.com/ #feature-slider .entry-container { background: rgba(136, 136, 136, 0.6) none repeat scroll 0 0; border-radius: 4px; }