QCollapsableWidget#Action {
  border-top: 2px solid red;
  text-align: left;
}

QCollapsableWidget#Advance {
  border-top: 2px solid blue;
}

QCollapsableWidget#Config {
  border-top: 2px solid green;
  text-align: right;
}

QCollapsableWidget[cssClass="active"] {
  background-color: #f04a4a;
}