Tool Tip Bottom

				/* resource - https://www.w3schools.com/howto/howto_css_tooltip.asp */
.tooltip {
  position: relative;
  display: inline-block;
  cursor:pointer;
}
.tooltip span {
	padding: 3px 15px 3px 10px;
  border: 1px solid #353535;
  border-radius: 20px;
}
.tooltip .tooltip-bottom {
  visibility: hidden;
  width: 120px;
  background-color: #555;
  color: #fff;
  text-align: center;
  padding: 5px 0;
  border-radius: 6px;
  position: absolute;
  z-index: 1;
  top: 135%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 0.3s;
}
.tooltip .tooltip-bottom::after {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent #555 transparent;
}
.tooltip:hover .tooltip-bottom {
  visibility: visible;
  opacity: 1;
}
.tooltip .fa-question-circle {
	margin-right: 10px;
}