css - Tooltip with HTML content without JavaScript

Question

There are plenty of JavaScript-based libraries that show tooltips when you hover your mouse over a certain area of a web page. Some are rather plain, some allow the tooltip to display HTML content styled with CSS.

But is there a way to show a styled tooltip without using JavaScript? If you just use the title attribute, tags are not processed (e.g. foo<br />bar doesn't produce a line break). I'm looking for a solution that allows one to display styled HTML content without using any JavaScript.

Answer 1

I have made a little example using css

.hover {
  position: relative;
  top: 50px;
  left: 50px;
}

.tooltip {
  /* hide and position tooltip */
  top: -10px;
  background-color: black;
  color: white;
  border-radius: 5px;
  opacity: 0;
  position: absolute;
  -webkit-transition: opacity 0.5s;
  -moz-transition: opacity 0.5s;
  -ms-transition: opacity 0.5s;
  -o-transition: opacity 0.5s;
  transition: opacity 0.5s;
}

.hover:hover .tooltip {
  /* display tooltip on hover */
  opacity: 1;
}

<div class="hover">hover
  <div class="tooltip">asdadasd
  </div>
</div>