icons.css

.milo-tooltip {
  position: relative;
  text-decoration: none;
  border-bottom: none;
}

.milo-tooltip::before {
  content: attr(data-tooltip);
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 100%;
  margin-left: 12px;
  width: 200px;
  padding: 10px;
  border-radius: 5px;
  background: #0469E3;
  color: #fff;
  text-align: left;
  display: none;
  z-index: 10;
}

.milo-tooltip::after {
  content: "";
  position: absolute;
  left: 100%;
  margin-left: -4px;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid #0469E3;
  border-color: transparent #0469E3 transparent transparent;
  display: none;
  z-index: 10;
}

.milo-tooltip.left::before {
  left: initial;
  margin: initial;
  right: 100%;
  margin-right: 12px;
}

.milo-tooltip.left::after {
  left: -8px;
  margin-right: 4px;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid #0469E3;
  border-color: transparent transparent transparent #0469E3;
}

.milo-tooltip.top::before {
  left: 50%;
  transform: translateX(-50%) translateY(-100%);
  top: -10px;
  margin-bottom: 15px;
}

.milo-tooltip.top::after {
  left: 50%;
  top: -2px;
  transform: translateY(-50%);
  border: 8px solid #0469E3;
  border-color: #0469E3 transparent transparent;
}

.milo-tooltip.bottom::before {
  left: 50%;  
  transform: translateX(-50%);
  top: 100%;
  margin-top: 12px;
}

.milo-tooltip.bottom::after {
  left: 50%;
  top: calc(100% + 4px);
  transform: translateY(-50%);
  border: 8px solid #0469E3;
  border-color: transparent transparent #0469E3;
}

.milo-tooltip:hover::before,
.milo-tooltip:focus::before,
.milo-tooltip:active::before {
  display: block; 
}

.milo-tooltip:hover::after,
.milo-tooltip:focus::after,
.milo-tooltip:active::after {
  display: block;
}