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<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<body>
<div class="w3-container">
  <h2>Tiny Tooltip</h2>
  <p>Hover over the sentence below!</p>
  <p class="w3-tooltip">London <span class="w3-text w3-tag w3-tiny">9 million inhabitants</span> is the capital of England.</p>
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</body>
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