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HTML

              
                <i class="fa fa-info-circle center datatitle" data-title="information"></i>

<h1>Attribute data-title, vertical balance <i class="fa fa-info-circle datatitle"></i> type granularity</h1>

<p>
  Consideration: 
  <code>
    .datatitle { position: relative; }
    <br>
    .datatitle:after { content: attr(data-title); display: none; position:absolute; } relative to .center
  </code>
</p>
<p>
Most CSS style declarations work well with HTML data-title attribute. Opacity of hover:after element is restricted by content attr(data-title) and class center. 
</p>

<ul>
	<li>Layout alignment</li>
	<li>Positioning .datatitle:hover::after is messy</li>
</ul>
<p>Enlarge <code>.center{font-size: 85vmin;}</code>: data-title positioning as expected is restricted by window sizes, including scroll-bars that ignore typographic viewport size in relation to scroll-bar display, for Safari. Method involves viewport adjustments to % and rem measure, in deploying typography apps, like fontawsome.com. Each online font character represents a streamed app.
<i class="fa fa-info-circle datatitle"></i> 2019-Apr-03</p>

<h2>Lorem Ipsum Dolor Sit Amet Consectetur !</h2>


<!-- resolved
<li>Works with codepen, with restriction</li>
<p>
Can also use: <code>top:2rem;</code>, with another style behavior destabilizing Codepen display of this tooltip. Codepen framing could be the problem.<br> ...Attributes anchor position relative to specific element, herein the typography font app. Codepen api may show weakness here, due to corruption of tool-tip position: unlike on desktop, the large centered SVG icon font tool-tip in codepen is not positioned correctly here, in Safari. <code>.center{transition:inherit;}</code> that sometimes helps style grouped features, no help. Codepen data-title fail on large icon is preceded and followed by correct tool-tip positioning. Class selector <code>.center{font-size:5vmin;}</code> presents no problem. Codepen shows problems when font-size is larger: <code>.center{font-size:85vmin;}</code>. This suggests similar problems in similar environments, elsewhere. FontAwesome, other remote services may also be disrupting Codepen display of code.
</p>
-->
              
            
!

CSS

              
                body {
  font-size: 1rem;
  padding: 2.5vh 5vw;
}
.datatitle {
  color: dodgerblue;
  opacity: 1.0;
  position: relative;
}
.datatitle::after {
	content: attr(data-title);
	display: none;
	position: absolute;
	-webkit-transform: translatey(-50%);
	-moz-transform: translatey(-50%);
	-o-transform: translatey(-50%);
	transform: translatey(-50%);
}
.datatitle:hover {
  color: forestgreen;
  cursor: pointer;
}
.datatitle:hover::after {
  background: yellow;
  display: inline-block;
  left: 30vw;
  font-size: 2.5vw;
  float: left;
  top: -6vw;
}
.center { /*fa*/
  font-size: 35vmin;
  left: 50%;
  opacity: 0.95;
  position: absolute;
  top: 50%;
  -webkit-transform: translatex(-50%) translatey(-50%);
  -moz-transform: translatex(-50%) translatey(-50%);
  -o-transform: translatex(-50%) translatey(-50%);
  transform: translatex(-50%) translatey(-50%); 
  z-index
}
              
            
!

JS

              
                
              
            
!
999px

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