ffdn.org/sites/all/modules/feedback_simple/feedback_simple.css

#feedback_simple a {
  cursor: pointer;
  display: block;
  overflow: hidden;
  position: fixed;
  text-decoration: none !important;
  z-index: 9999;
}

#feedback_simple img {
  border: none;
}

.feedback_simple-left {
  left: -2px;
}

.feedback_simple-right {
  right: -2px;
}