<p>New Products:</p> <ul> <li><data value="398">Mini Ketchup</data></li> <li><data value="399">Jumbo Ketchup</data></li> <li><data value="400">Mega Jumbo Ketchup</data></li> </ul>
data:hover::after { content: ' (ID ' attr(value) ')'; font-size: 0.7em; }