The content property

The content property allows you to insert arbitrary generated text into tags. It is used together with after and before pseudo-elements.

Syntax

selector::after {
	content: 'text';
}

селектор::before {
	content: 'text';
}

Let's insert additional text at the start and end of the li tag text:

<ul>
	<li>list item</li>
	<li>list item</li>
	<li>list item</li>
	<li>list item</li>
	<li>list item</li>
</ul>

li::before {
	content: '!!!';
}
li::after {
	content: '???';
}

You can apply different styles to inserted text. Let's color this text in some color, for example:

<ul>
	<li>list item</li>
	<li>list item</li>
	<li>list item</li>
	<li>list item</li>
	<li>list item</li>
</ul>

li::before {
	color: red;
	content: '!!!';
}
li::after {
	color: green;
	content: '???';
}