Example

by Julien Etienne

HTML

<!-- Learn about this code on MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/Class_selectors -->

<div id="classy">This div has a special class on it!</div>
<div id="foo classy bar">Elements can have multiple classes and the class selector still works!</div>
<div>This is just a regular div.</div>

CSS

#foo#classy#bar{
  background-color: skyblue;
}