Line across footer – remove

In my footer there is a white line that I cannot remove.
Under appearance I have the code below – I just do not understand where that white line comes from.
Hope someone knows how to fix this.

#footer-sidebar {
display:block;
height: auto;
}

#footer-sidebar3 {
float: left;
border: 1px solid #fff;
border-radius: 20px;
width: 100%;
margin-left:5px;
margin-right: 5px;
background-color: #193549;
color: #ffffff
}

and then in the widget

The page I need help with: [log in to see the link]