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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="/lib/w3.css"> <style> .w3-btn{width:300px;} </style> <body class="w3-container"> <h2>Button Shapes</h2> <p><button class="w3-btn w3-xlarge">Normal</button></p> <p><button class="w3-btn w3-xlarge w3-round-small">Round Small</button></p> <p><button class="w3-btn w3-xlarge w3-round">Round Normal</button></p> <p><button class="w3-btn w3-xlarge w3-round-large">Round Large</button></p> <p><button class="w3-btn w3-xlarge w3-round-xlarge">Round xLarge</button></p> <p><button class="w3-btn w3-xlarge w3-round-xxlarge">Round xxLarge</button></p> </body> </html>