style.css

body {
	font-size: 16px;
	font-family: Verdana, Geneva, Tahoma, sans-serif;
	padding: 0;
	margin: 0;
	width: 100vw;
	height: 100vh;
}

main {
	padding: 0;
	margin: 0;
	display: flex;
	justify-content: center;
	align-items: center;
	height: 90%;
	width: 90%;
}
ul {
	list-style-type: none;
	margin: 0;
	padding: 2px 10px;
	overflow: hidden;
	background-color: #218380;
}
li {
	float: left;
	padding: 15px 1px;
	color: #ffffff;
}
.container {
	border-radius: 15px;
	box-shadow: 2px 2px 5px 5px rgba(0, 0, 0, 0.2);
	width: 800px;
	max-width: 80%;
	padding: 30px 10px 20px 20px;
}

button {
	color: #ffffff;
	background-color: #218380;
	font-size: 16px;
	border-radius: 10px;
	border: none;
	cursor: pointer;
}

.btn {
	color: #ffffff;
	background-color: #218380;
	font-size: 16px;
	padding: 10px;
	border-radius: 10px;
	border: none;
}

.btn-grid {
	display: grid;
	gap: 10px;
	margin: 20px 0;
}

.btn:hover {
	border-color: black;
	color: #fff;
}

.hide {
	display: none;
}