.nav-tabs {
  border-bottom: none;
}

.nav-tabs > li.active > a, .nav-tabs > li.active > a:focus, .nav-tabs > li.active > a:hover {
  color: #555;
  cursor: default;
  border: none;
  border-bottom: solid 5px red;
  line-height: normal;
}

.nav > li > a:focus, .nav > li > a {
  text-decoration: none;
  margin: 0;
  line-height: normal;
  border: none;
  /*border-bottom: solid 5px gray;*/
}

.nav-tabs > li > a:hover {
  /*border: none;*/
  background-color: #b22d2d;
  /*border-bottom: solid 5px gray;*/
}

.tab-content {
  padding: 10px;
}

.nav-tabs > li > a {
  border-radius: 0;
  margin: 0;
  line-height: normal;
  color: black;
  font-size: 20px;
}

.nav-tabs > li {
  float: left;
  margin-bottom: -1px;
  width: 33.33%;
}

.nav-tabs .nav-link:focus, .nav-tabs .nav-link:hover {
  background-color: #b22d2d;
  color: white;
}

.custom-select.is-invalid:focus, .form-control.is-invalid:focus, .was-validated .custom-select:invalid:focus, .was-validated .form-control:invalid:focus {
  /*border-color: #dc3545;*/
  box-shadow: 0 0 0 .2rem rgba(220,53,69,.25);
}

.custom-select.is-invalid, .form-control.is-invalid, .was-validated .custom-select:invalid, .was-validated .form-control:invalid {
  /*border-color: #dc3545;*/
}

.nav-tabs .nav-link:focus, .nav-tabs .nav-link:hover {
  /*border-color: #e9ecef #e9ecef #dee2e6;*/
}