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<!DOCTYPE html> <html> <head> <style> .center { display: flex; justify-content: center; align-items: center; height: 200px; border: 3px solid green; } </style> </head> <body> <h1>Centering</h1> <p>A container with both the justify-content and the align-items properties set to <em>center</em> will align the item(s) in the center (in both axis).</p> <div class="center"> <button>Centered Button</button> </div> </body> </html>
