.popover {
  display: inline;
  position: relative;
  text-align: center;
}

.popover2 {
  display: inline;
  position: relative;
  text-align: center;
}

.popover:hover:after {
  font-size: 48px;
  text-decoration: none;
  background: rgba(101,45,126,0.8);
  border: solid rgba(33,150,243,0.8) 4px;
  border-radius: 0.4em;
  bottom: 26px;
  color: #FFFFFF;
  content: attr(data-title);
  left: -50%;
  position: absolute;
  z-index: 98;
  width: 1.75em;
  vertical-align: middle;
}

.popover2:hover:after {
  font-size: 48px;
  text-decoration: none;
  background: rgba(101,45,126,0.8);
  border: solid rgba(33,150,243,0.8) 4px;
  border-radius: 0.4em;
  bottom: 26px;
  color: #FFFFFF;
  content: attr(data-title);
  left: -5%;
  position: absolute;
  z-index: 98;
  width: 1.75em;
  vertical-align: middle;
}