<!-- normally this stuff would be on the html element -->

<!--[if lt IE 7]>  <div class="ie ie6 lte9 lte8 lte7"> <![endif]-->

<!--[if IE 7]>     <div class="ie ie7 lte9 lte8 lte7"> <![endif]-->

<!--[if IE 8]>     <div class="ie ie8 lte9 lte8"> <![endif]-->

<!--[if IE 9]>     <div class="ie ie9 lte9"> <![endif]-->

<!--[if gt IE 9]>  <div> <![endif]-->

<!--[if !IE]><!--> <div>             <!--<![endif]-->

  <div class="wrapper">

    I have a tooltip.

    <div class="tooltip">I am a tooltip!</div>

  </div>

</div>

.wrapper {

  text-transform: uppercase;

  background: #ececec;

  color: #555;

  cursor: help;

  font-family: "Gill Sans", Impact, sans-serif;

  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 */

}

​

.wrapper .tooltip {

  background: #1496bb;

  bottom: 100%;

  color: #fff;

  display: block;

  left: -25px;

  margin-bottom: 15px;

  opacity: 0;

  padding: 20px;

  pointer-events: none;

  position: absolute;

  width: 100%;

  -webkit-transform: translateY(10px);

     -moz-transform: translateY(10px);

      -ms-transform: translateY(10px);

       -o-transform: translateY(10px);

          transform: translateY(10px);

  -webkit-transition: all .25s ease-out;

     -moz-transition: all .25s ease-out;

      -ms-transition: all .25s ease-out;

       -o-transition: all .25s ease-out;

          transition: all .25s ease-out;

  -webkit-box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.28);

     -moz-box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.28);

      -ms-box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.28);

       -o-box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.28);

          box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.28);

}

​

/* This bridges the gap so you can mouse into the tooltip without it disappearing */

.wrapper .tooltip:before {

  bottom: -20px;

  content: " ";

  display: block;

  height: 20px;

  left: 0;

  position: absolute;

  width: 100%;

}  

​

/* CSS Triangles - see Trevor's post */

.wrapper .tooltip:after {

  border-left: solid transparent 10px;

  border-right: solid transparent 10px;

  border-top: solid #1496bb 10px;

  bottom: -10px;

  content: " ";

  height: 0;

  left: 50%;

  margin-left: -13px;

  position: absolute;

  width: 0;

}

.wrapper:hover .tooltip {

  opacity: 1;

  pointer-events: auto;

  -webkit-transform: translateY(0px);

     -moz-transform: translateY(0px);

      -ms-transform: translateY(0px);

       -o-transform: translateY(0px);

          transform: translateY(0px);

}

​

/* IE can just show/hide with no transition */

.lte8 .wrapper .tooltip {

  display: none;

}

​

.lte8 .wrapper:hover .tooltip {

  display: block;

}