Css :empty pseudo-class represents an element that has no children at all. Few cases
<p></p>is considered empty<div>hello</div>is not considered empty
Example – css :empty
<style type="text/css" media="screen">
div:empty {
margin-top:20px;
}
</style>
<div>div1</div>
<div></div>
<div>div2</div>
