t{
	padding:10px;
	width:80%;
	font-size:1.2em;
	z-index: 1000;
}

div{
	border:0;
	margin:0;
	padding:0;
	text-align: center;
}
button {
	margin:40px;
	padding:40px;
}

#container2 button{
	margin: 5px min(10px, 1vh);
	padding:10px min(100px, 10vh);
	cursor:pointer;
	height:100%;
	font-size: max(30px, 4.5vh);
	font-weight: 900;
}
iframe{
	border:1px solid white;
}
span {
    margin: 0 10px;
}
.selected{
	border:3px solid lightblue;
}
</style>
</head>
<body>



<div 