<footer style="border: 2px #000000 solid; border-radius: 1%;"> <span style="display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; justify-items: center; text-decoration: none;"> <a href="./M0/01/index.php">M0</a> <a href="./M1/01/index.php">M1</a> <a href="./M2/01/index.php">M2</a> </span> </footer>