.arrow:after {
  content: "";
  position: absolute;
  left: 20px;
  top: -20px;
  width: 25px;
  height: 25px;
  box-shadow: 6px 5px 9px -9px black;
  -webkit-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
}
.arrow {
  width: 70px;
  height: 16px;
  overflow: hidden;
  position: absolute;
  left: 50%;
  margin-left: -35px;
  bottom: -16px;
}
.arrow.top {
  top: -16px;
  bottom: auto;
}
.arrow.left {
  left: 20%;
}
.ui-tooltip, .arrow:after {
  background: black;
  border: 2px solid white;
}
.ui-tooltip {
  padding: 10px 12px;
  color: white;
  border-radius: 10px;
  font: 14px "Helvetica Neue", Sans-Serif;
  box-shadow: 0 0 2px black;
}
.arrow.top:after {
  bottom: -20px;
  top: auto;
}