.btn-group {
  display: inline-block;
  position:relative;
  vertical-align:bottom;
}

.btn-group > .btn {
  position:relative;
}

.btn-group > .dropdown-menu {
  position: absolute;
  background:white;
  top: 100%;
  z-index: 1;
  display:none;
  list-style-type:none;
}


.open > .dropdown-menu {
  display:block;
}

.btn .caret {
  display:inline-block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 6px 3px 0 3px;
  border-color: #ffffff transparent transparent transparent;
  pointer-events: none;
}