<html> <head> <style> div::first-line { color: red; background-color: blue; font-size: 200%; text-transform: uppercase; } </style> </head> <body> <div> <span>Line number one.<br/>Line number two.<br/>Line number three.</span> </div> <div style="height: 50000px;"> <!-- to force a scrollbar --> </div> </body> </html>