x
<html><head><meta name="viewport" content="width=device-width, initial-scale=1"><style>body { background: #555;}.content { max-width: 500px; margin: auto; background: white; padding: 10px;}</style></head><body><div class="content"> <h1>This page is horizontally centered on screens that are wider than 500 pixels.</h1> <h1>Resize the browser window to see the effect.</h1> <p>This page is always centered on screens that are wider than 500px. On screens that are less than 500px wide, it will span the whole of the page.</p> <p>Content inside this container is centered horizontally.</p> <p>Content inside this container is centered horizontally.</p> <p>Content inside this container is centered horizontally.</p> <p>Content inside this container is centered horizontally.</p> <p>Content inside this container is centered horizontally.</p> <p>Content inside this container is centered horizontally.</p> <p>Content inside this container is centered horizontally.</p> <p>Content inside this container is centered horizontally.</p> <p>Content inside this container is centered horizontally.</p></div></body></html>