This page shows you how use CSS to add text into your HTML pages, using the :before and :after pseudo-elements.
You can use CSS to automatically insert text or images into your HTML page at certain tags. For example, in the following:
How to do this?
This way.
The “Q:” and “A:” are actually not in HTML. They are added using CSS. If you turn off CSS in your browser, they'll disappear.
To add text before or after a tag, use this:
p.x3465:before {content:"Q: ";font-size:x-large;font-family:serif}
and the HTML would look like this:
<p class="x3465">How to do this?</p>