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<html><title>W3.CSS</title><meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="https://www.w3schools.com/w3css/5/w3.css"><body class="w3-container"><form class="w3-panel w3-card-4" action="/action_page.php"> <h2>Input Form</h2> <p><input class="w3-input" type="text" placeholder="Name"></p> <p><input class="w3-input" type="text" placeholder="Email"></p> <p><textarea class="w3-input" placeholder="Subject"></textarea></p> <p><button class="w3-btn w3-black">Register</button></p></form></body></html>