create new site layout

css/overlay.css

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+.overlay-container {
+	position: relative;
+	max-width: 1080px;
+	margin-left: auto;
+	margin-right: auto;
+}
+
+.overlay-container .image {
+	display: block;
+	width: 100%;
+	height: auto;
+}
+
+.overlay-container .overlay-mask {
+	position: absolute;
+	top: 0;
+	bottom: 0;
+	left: 0;
+	right: 0;
+	height: 100%;
+	width: 100%;
+	background-color: rgba(0, 0, 0, 0);
+	color: rgba(0, 0, 0, 0);
+	transition-property: color, background-color;
+	transition-duration: 0.25s, 0.25s;
+	transition-timing-function: ease-in-out;
+}
+
+.overlay-container:hover .overlay-mask {
+	background-color: rgba(0, 0, 0, 0.7);
+	color: rgba(255, 255, 255, 1);
+}
+
+.overlay-container .overlay-content {
+	padding-left: 15%;
+	padding-right: 15%;
+	height: 100%;
+	display: flex;
+	flex-direction: column;
+	justify-content: center;
+	text-decoration: none;
+}

css/style.css

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+html {
+	box-sizing: border-box;
+}
+
+h1, h2, h3, h4, h5, h6, p, a, label, button, input, select, td {
+	font-family: monospace;
+}
+
+body {
+	margin-left: 16px;
+	margin-right: 16px;
+	width: calc(100% - 16px - 16px);
+}
+
+header {
+	margin-top: 50px;
+	text-align: center;
+}
+
+h1 a {
+	text-decoration: none;
+}
+
+nav {
+	display: flex;
+	flex-direction: row;
+	flex-wrap: nowrap;
+	column-gap: 4ch;
+	justify-content: center;
+}
+
+nav a {
+	text-decoration: none;
+	font-size: larger;
+}
+
+main {
+	text-align: center;
+}