@import url(https://fonts.googleapis.com/css?family=Muli&display=swap);
*{box-sizing:border-box}body{background-color:#e1e1e1;font-family:"Muli",sans-serif;display:flex;align-items:center;justify-content:center;text-align:center;height:100vh;overflow:hidden;margin:0}.key{border:1px solid #999;background-color:#eee;box-shadow:1px 1px 3px rgba(0,0,0,.1);display:inline-flex;align-items:center;font-size:20px;font-weight:bold;padding:20px;flex-direction:column;margin:10px;min-width:150px;position:relative}.key small{position:absolute;top:-24px;left:0;text-align:center;width:100%;color:#555;font-size:14px}@media(max-width: 768px){.key{margin:10px 0px}}