morrisjs.css in Open Social 8.9

.morris-hover {
  position: absolute;
  z-index: 1000;
}

.morris-hover.morris-default-style {
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.14), 0 4px 8px rgba(0, 0, 0, 0.28);
  border-radius: 10px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.8);
  font-size: 0.75rem;
  text-align: center;
}

.morris-hover.morris-default-style .morris-hover-row-label {
  font-weight: bold;
  margin: 0.25em 0;
}

.morris-hover.morris-default-style .morris-hover-point {
  white-space: nowrap;
  margin: 0.1em 0;
}