.ng-valid[required], .ng-valid.required {
  border-left: 5px solid #42A948; /* green */
}
.ng-invalid:not(form) {
  border-left: 5px solid #a94442; /* red */
}
/*.no-style .ng-valid {
  border-left: 1px solid #CCC
}

.no-style .ng-invalid {
  border-left: 1px solid #CCC
}
*/