style.css

@import url('https://fonts.googleapis.com/css2?family=Roboto&family=Roboto+Slab:wght@500&display=swap');

* {
	--col-theme: #008c95; /* Pantone 321 C */
	box-sizing: border-box;
}

html, body {
	margin: 0;
	font-family: 'Roboto', sans-serif;
	font-size: 14pt;
	height: 100%;
}

.topbar {
	height: 80px;
	width: 100%;
	background: var(--col-theme);
	line-height: 77px;
	text-align: center;
	font-size: 28pt;
	font-family: 'Roboto Slab', serif;
	color: #fff;
}

.linkbutton {
	color: #000;
	background: #ccc;
	border-radius: 1px;
	text-decoration: none;
	text-align: center;
	padding: 5px 10px 5px 10px;
	margin: 5px;
	font-size: 14pt;
}

.linkbutton:active {
	background: #aaa;
}

.main {
	display: flex;
	flex-direction: row;
	margin: 30px;
	margin-bottom: 0px;
}
.main > div {
	display: flex;
	flex-direction: column;
	margin: 15px;
	margin-bottom: 0px;
	padding: 5px;
}

.errors {
	margin: 50px;
	margin-top: 0px;
	padding: 10px;
	font-size: 11pt;
	font-family: 'DejaVu Sans Mono', monospace;
}

.errors > div {
	margin-bottom: 10px;
	color: #800;
}

.colheader {
	text-align: center;
	margin-bottom: 10px;
}

.helpmain {
	width: 50%;
	margin: auto;
	padding-bottom: 150px;
}

textarea {
	font-family: 'DejaVu Sans Mono', monospace;
	font-size: 10pt;
	border: 1px solid #888;
	border-radius: 0px;
}

textarea:active {
	border: 1px solid var(--col-theme);
	border-radius: 0px;
}

code {
	font-family: 'DejaVu Sans Mono', monospace;
	font-size: 11pt;
	padding: 1px 6px 1px 6px;
	background-color: #ececec;
	border-radius: 1px;
}

div.code {
	display: inline-block;
	padding: 6px 10px 6px 10px;
	font-family: 'DejaVu Sans Mono', monospace;
	font-size: 11pt;
	background-color: #ececec;
	border-radius: 1px;
	border-left: 3px solid #bbb;
}

h1 {
	font-family: 'Roboto Slab', serif;
	font-size: 20pt;
}
h2 {
	font-family: 'Roboto Slab', serif;
	font-size: 16pt;
}

hr {
	color: #ccc;
	margin: 30px 0 30px 0;
}

p {
	margin: 20px 0px 7px 0px;
}

input {
	font-size: 16pt;
}

input[type=text] {
	margin: 0;
	padding: 2px;
	border-radius: 2px;
	border: 1px solid #ccc;
}

input[type=text]:focus {
	border: 1px solid var(--col-theme);
}