.oa-river .pull-right {
  padding-right: 3px;
  position: relative;
  z-index: 1; /* raise above the mouse-over background color */
}
.oa-river .pull-left {
  padding: 2px 5px 2px 2px;
  position: relative;
  z-index: 1; /* raise above the mouse-over background color */
}
.oa-river .pull-right .oa-description {
  padding-top: 3px;
}