Fork-Awesome/assets/less/site/bootstrap/panels.less

.panel {
  .box-shadow(none);
}

.panel-heading {
  margin: -1px;
  border-bottom-width: 0;
  padding: 11px 15px;
}

.panel-default .panel-heading {
  margin: 0;
  border-bottom-width: 1px;
  padding: 10px 15px;
}