.my-btn-group-toggle .my-btn {
  background-color: transparent;
  border: none;
  padding: 5px 5px;
  cursor: pointer;
}

.my-btn-group-toggle .my-btn.active {
  /*background-color: #4CAF50;*/
  border-bottom: 3px steelblue solid;
  /*color: white;*/
}