Problem: last cell in navigation/pills background overlapping parent container's border
Reproduce: For example look at the property pills at [Johann Sebastian Bach (Q1339). At the bottom left and bottom right of these pills the light blue border of the parent div is overlapped by multiple of the backgrounds of its child elements th, tr and tbody.
Proposed solution:
Apply something like this to the bootstrap.css. I found a selector for the element that's missing the border-radius in the specific case at that page. The culprit has no class... but either selector works on most of them:
div.panel > div > div,
div#statements_family > div {
border-bottom-left-radius: 4px;
border-bottom-right-radius: 4px;
}