.btn {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	background: rgba(0, 0, 0, 0.2);
	box-shadow: 0 15px 15px rgba(0, 0, 0, 0.3);
	border: 4px solid rgba(255, 255, 255, 0.5);
	border-radius: 30px;
	padding: 10px;
	letter-spacing: 1px;
	text-decoration: none;
	overflow: hidden;
	color: #fff;
	z-index: 1;
	backdrop-filter: blur(10px);
	font-family:"Oswald-VariableFont_wght";
	font-size:1.2em;
	font-weight:bold;
}

#agua{
	color:black;
}
.btn:active {
	letter-spacing: 3px;
}


.btn::active {
	content: "";
	position: absolute;
	left: 50%;
	transform: translatex(-50%);
	bottom: -5px;
	width: 30px;
	height: 10px;
	background: #f00;
	border-radius: 10px;
	transition: 0.5s;
	transition-delay: 0.5;
}