*{
	margin:0;
	padding:0;
	list-style:none;
	text-decoration:none;
}

body{
	overflow:hidden;
}

#contenedor{
	position:relative;
	margin:5vh auto;
	width:1000px;
	height:500px;
}

#lienzo{
	background:url(../img/grid.jpg);
}

#contenedor button{
	display:block;
	position: relative;
	margin:5px 0;
	padding:10px;
	cursor:pointer;
}

#vertical{
	display:none;
}

#temporizador{
	position:absolute;
	top:0;
	left:0;
	padding:20px;
}

@media all and (orientation: portrait){

	#contenedor{
		display:none;
	}

	#vertical{
		display:block;
		position:fixed;
		width:100%;
		height:100vh;
		z-index:1;
		background:url(../img/vertical.jpg);
		background-size:cover;
		background-position:center;
	}

}