body {
	margin: 20px;
	font-family: Verdana;
}

#menu-principal {
	padding: 10px 0px;
}

#menu-principal a {
	color: green;
	text-decoration: none;
}

#menu-principal a:hover {
	text-decoration: underline;
}

#menu-principal a + a::before {
	content: " | ";
	color: black;
}

footer {
	margin-top: 20px;
	border-top: solid 1px black;
	padding-top: 10px;
	text-align: center;
}

table {
	border-collapse: collapse;
}

table, th, td {
	border: solid 1px black;
	padding: 10px;
}

tbody tr:nth-child(even) {
	background: #CCC;
}

tbody tr:nth-child(odd) {
	background: #CCF;
}

tbody tr:nth-child(even):hover {
	background: #DDD;
}

tbody tr:nth-child(odd):hover {
	background: #DDF;
}

.sombra {
	box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.6);
}