How to create glowing effect with HTML 5
<p>Looking for help implementing that little blue dot as seen on Stacks new Documentation site, it's perfect for animating a dashboard I'm building that shows service health/metrics. I grabbed html/css using Chrome's inspector, but I'm terrible at this stuff, I can't even get a dot, much less a blue one that glows ;-D</p>

<p><a href="https://jsfiddle.net/raffinyc/3trup2c1/" rel="nofollow noreferrer">https://jsfiddle.net/raffinyc/3trup2c1/</a></p>

<pre><code>.help-bubble:after {
  content: "";
  background-color: #3af;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  position: absolute;
  display: block;
  top: 1px;
  left: 1px;
}
&lt;span class="help-bubble-outer-dot"&gt;
        &lt;span class="help-bubble-inner-dot"&gt;&lt;/span&gt;
&lt;/span&gt;
</code></pre>

<p><a href="https://i.stack.imgur.com/WeMGG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WeMGG.png" alt="enter image description here"></a></p>