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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"> <body> <div class="w3-container"> <h2>Three Equal Columns</h2> <p>Three equal-width columns (33.3%/33.3%/33.3%) on all screen sizes:</p> </div> <div class="w3-row"> <div class="w3-col s4 w3-green w3-center"> <p>s4</p> </div> <div class="w3-col s4 w3-dark-grey w3-center"> <p>s4</p> </div> <div class="w3-col s4 w3-red w3-center"> <p>s4</p> </div> </div> <div class="w3-row w3-container"> <p>Inside a container:</p> <div class="w3-col s4 w3-green w3-center"> <p>s4</p> </div> <div class="w3-col s4 w3-dark-grey w3-center"> <p>s4</p> </div> <div class="w3-col s4 w3-red w3-center"> <p>s4</p> </div> </div> </body> </html>