.note-btn-group {
  position: relative;
  display: inline-block;
  margin: 5px;

  > .note-btn-group {
    margin-right: 0;
  }

  > .note-btn:first-child {
    margin-left: 0;
  }

  .note-btn + .note-btn,
  .note-btn + .note-btn-group,
  .note-btn-group + .note-btn,
  .note-btn-group + .note-btn-group {
    margin-left: -1px;
  }

  > .note-btn:not(:first-child),
  > .note-btn-group:not(:first-child) > .note-btn {
      border-top-left-radius: 0;
      border-bottom-left-radius: 0;
  }

  > .note-btn:not(:last-child):not(.dropdown-toggle),
  > .note-btn-group:not(:last-child) > .note-btn {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
  }

  &.open {
    > .note-dropdown {
      display: block;
    }
  }
}