jQuery Simple Example

HTML

<script src="//www.addressfinder.co.nz/assets/v2/widget.js"></script>
<div id="wrapper">
  Some normal text here
  <div id="tooltip">I am a tooltip!<br>
  <div id="close">close</div>
</div>


<div id="wrapper">
  Another tooltip
  <div id="tooltip">I am a second tooltip!<br>
  <div id="close">close</div>
</div>

CSS

#close{ cursor: pointer; }
#wrapper {
  text-transform: uppercase;
  background: #ececec;
  color: #555;
  cursor: help;
  font-family: Arial;
  font-size: 20px;
  margin: 100px 75px 10px 75px;
  padding: 15px 20px;
  position: relative;
  text-align: center;
  width: 200px;
  -webkit-transform: translateZ(0); /* webkit flicker fix */
  -webkit-font-smoothing: antialiased; /* webkit text rendering fix */
}

#tooltip {
  background: #1496bb;
  bottom: 100%;
  color: #fff;
  display: block;
  right: -100px;
  margin-bottom: -50%;
  opacity: 0;
  padding: 20px;
  pointer-events: none;
  position: absolute;
  width: 50%;
  transition: all .25s ease-out;
  box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.28);
  -webkit-transform: translateY(10px);
     -moz-transform: translateY(10px);
      -ms-transform: translateY(10px);
       -o-transform: translateY(10px);
          transform: translateY(10px);
}

/* This bridges the gap so you can mouse into the tooltip without it disappearing */
#tooltip:before {
  bottom: -20px;
  content: " ";
  height: 20px;
  left: 0;
  position: absolute;
  width: 100%;
}  

/* CSS Triangles - see Trevor's post */
#tooltip:after {
  border-left: solid transparent 10px;
  border-right: solid #1496bb 50px;
  border-top: solid transparent 20px;
  bottom: 50%;
  content: " ";
  height: 0;
  left: -10%;
  margin-left: -13px;
  position: absolute;
  width: 0;
}
  
#tooltip.active {
  opacity: 1;
  pointer-events: auto;
  -webkit-transform: translateY(0px);
     -moz-transform: translateY(0px);
      -ms-transform: translateY(0px);
       -o-transform: translateY(0px);
          transform: translateY(0px);
}

JavaScript

document.querySelector("#wrapper").addEventListener("mouseover", function() {
	document.querySelector("#tooltip").className = "active";
});
document.querySelector("#wrapper").addEventListener("mouseout", function() {
	document.querySelector("#tooltip").className = "";
});
document.querySelector("#close").addEventListener("click", function() {
	document.querySelector("#tooltip").className = "";	
});