<!DOCTYPE html>
<html>
<head>
<style>
p{
padding: 10px;
background: #eed;
color: #666;
font-size: 1.5em;
margin: 40px 20px;
counter-increment: infobox;
}
p:before{
content: "Paragrafo " counter(infobox);
font-size: 0.5em;
display: block;
margin-top: -25px;
margin-left: -10px;
position: absolute;
}
</style>
</head>
<body>
<p>
Lorem ipsum dolor sit amet consectetur
</p>
<p>
Lorem ipsum dolor sit amet consectetur
</p>
<p>
Lorem ipsum dolor sit amet consectetur
</p>
</body>
</html>