body{
	text-align: center;
	font-family: sans-serif;
	margin: 0;
}
.modal{
	width: 100%;
	height: 100vh;
	background: rgba(0,0,0,0.8);
	position: absolute;
	top:0;
	left: 0;
	display: flex;
	animation: modal 2s 1s forwards;
	
	visibility: hidden;
	opacity: 0;
}
.contenidossss{
	width: 3%;
	height: 5%;
	margin: auto;
	background: white;
	border-radius: 10px;

}


#cerrar{
	display: none;
}
#cerrar + label{
	position: fixed;
	color: #fff;
	font-size: 25px;
	z-index: 50;
	background: darkred;
	height: 40px;
	width: 40px;
	line-height: 40px;
	border-radius: 50%;
	right: 10px;
	cursor: pointer;
	animation: modal 2s 1s forwards;
	
	visibility: hidden;
	opacity: 0;
}
#cerrar:checked +label, #cerrar:checked ~ .modal{
	display: none;
}

@keyframes modal{
	100%{
		visibility: visible;
	opacity: 1;
	}
}