.collapsible-handle {
  font-weight: bold;
  cursor: pointer;
}

.collapsible-handle:after {
  content: " -"
}

.collapsible-handle.collapsed:after {
  content: " +"
}

.domain,
.include,
.redirect,
.mx,
.a {
  padding-left: 2em;
}

.warning {
  color: orange;
}

.error {
  color: red;
}