Add a quiz editing page

docs/styles.css

@@ -0,0 +1,52 @@
+.center {
+	text-align: center;
+}
+
+.full-width {
+	max-width: unset;
+	width: 90vw;
+	margin: 0 auto;
+}
+
+#app {
+	display: flex;
+	flex-wrap: wrap;
+}
+
+#app > div {
+	flex-grow: 1;
+	min-width: 350px;
+	max-width: 50%;
+	margin: 5px;
+}
+
+.options {
+	background: #1a242f;
+	border-radius: 7px;
+	padding: 5px 7px;
+	width: 45%;
+}
+
+.options > details[open] {
+	background: #1e2f3d;
+	border-radius: 5px;
+	margin: 5px;
+	padding: 5px 7px;
+}
+
+h2, h3, h4 {
+	margin: 0;
+	margin-bottom: 5px;
+}
+
+.preview {}
+
+@media only screen and (max-width: 800px) {
+	#app > div {
+		max-width: unset;
+	}
+
+	.options {
+		width: unset;
+	}
+}