body {
	font-family: sans-serif;
	line-height: 1.5;
	margin: 0;
	padding: 0;
	background-color: #f5f5f5;
}

header, main, footer {
	max-width: 800px;
	margin: 0 auto;
	padding: 0.5rem;
	background-color: #fff;
}

footer {
	font-size: 0.9rem;
	text-align: center;
	background-color: #eee;
	margin-top: 2rem;
}

h1 {
	background-color: #007acc;
	color: #ffffff;
	font-size: 1.5rem;
	font-weight: bold;
	text-align: center;
	padding: 1em;
	margin: 1em 0;
}

h2 {
	color: #003366;
	font-weight: bold;
	text-align: center;
}

h3 {
	color: #003366;
}

table {
	width: 100%;
}

td {
	vertical-align: top;
	padding: 0.2rem 0.5rem;
}

table.detail-table {
	width: 100%;
	border-collapse: collapse;
	margin-top: 1rem;
}

.detail-table th {
	text-align: left;
	vertical-align: top;
	padding: 0.5rem;
	background-color: #eee;
	width: 30%;
}

.detail-table td {
	padding: 0.5rem;
}

ul {
	padding-left: 1.2em;
}
<!--
select, input[type="text"], input[type="submit"], input[type="reset"] {
	padding: 0.3rem;
	font-size: 1rem;
	margin: 0.2rem 0;
}
-->
select {
	padding: 0.3rem;
	font-size: 1rem;
	margin: 0.2rem 0;
}

button, input[type="submit"], input[type="reset"] {
	padding: 0.5rem 2rem;
	font-size: 1rem;
	background-color: #003366;
	color: #fff;
	border: none;
	cursor: pointer;
	margin-right: 0.5rem;
}

.button-center {
	text-align: center;
	margin: 1rem auto;
}

.button-row {
	text-align: center;
	margin: 2rem auto;
}

.pagination-form {
	text-align: center;
	margin: 0.5rem auto;
}
input.pagination-button {
	font-size: 0.8rem;
	padding: 0.5rem 0.5rem;
	background-color: #0055AA;
	color: #fff;
	border: none;
	cursor: pointer;
}

.company-entry {
	margin-bottom: 1.5rem;
	border-bottom: 1px solid #ccc;
	padding-bottom: 1rem;
}

.form-section {
	margin-top: 2rem;
}

.notice {
	background-color: #cccccc;
	padding: 1rem;
	border: 3px solid #003366;
	text-align: center;
}

.container {
	max-width: 720px;
	margin: 0 auto;
	padding: 1rem;
}
.underline-blue {
	display: block;
	border-bottom: 3px solid #007BFF;
	padding-bottom: 0.1em;
}
.underline-red {
	display: block;
	color: #FF0000;
	border-bottom: 3px solid #FF007B;
	padding-bottom: 0.1em;
}