.form-table.settings input.regular-text:not([type=checkbox]) {
    width: 25em;
}

.form-table.settings .as-label-text {
  background: inherit;
  border: none;
  padding: 0;
  width: 25em;
}
.form-table.settings .as-label-text:focus {
  box-shadow: none;
}

.form-table.settings.supportmode {
  background: mistyrose;
  border-radius: 5px;
  margin-top: 0;
}
.form-table.settings.supportmode th label {
  padding-left: 20px;
}

.form-table.settings button.supportmode {
  background: mistyrose;
}

fieldset.supportmode {
  border: 1px solid lightgray;
  padding: 10px;
}