body {
	font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
}

p {
	text-align: center;
}

a {
	text-decoration: none;
	color: #1d78ac;
}

main {
	width: 90%;
	margin: 50px auto;
	max-width: 1000px;
}

form {
	padding-bottom: 30px;
}

input[type=url] {
	width: 100%;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
	padding: 10px;
	border: 1px solid #ccc;
	border-radius: 5px;
	font-size: 16px;
}

input[type=url]:focus {
	outline: none;
}

input[type=url]:focus::placeholder {
	color: transparent;
}

table {
	width: 100%;
	border-collapse: collapse;
}

table caption {
	display: none;
}

table td, table th {
	border: 1px solid #ddd;
	padding: 8px;
}

table tr:hover {
	background-color: #ddd;
}

table th {
	padding-top: 12px;
	padding-bottom: 12px;
	text-align: left;
	background-color: #4493c1;
	color: #fff;
}

.arrow-up {
	width: 0;
	height: 0;
	border-left: 7px solid transparent;
	border-right: 7px solid transparent;
	border-bottom: 7px solid grey;
}