Reformat top navigation menus

Have accessibility menu appear on same line as main menu.

public_html/css/hpr.css

@@ -74,24 +74,27 @@ body {
 	padding: 0;
 	min-height: 100vh;
 }
-
-body > nav {
+#top_navigation {
+	display: flex;
+	flex-direction: row-reverse;
+	justify-content: space-between;
 	background-color: var(--background-secondary);
 	color: var(--text-secondary);
+	padding: 0.5rem;
 }
-body > nav a {
+#top_navigation > nav a {
 	color: var(--link-secondary);
 }
-body > nav a:hover {
+#top_navigation > nav a:hover {
 	color: var(--link-secondary-hover);
 }
-body > nav ul {
+#top_navigation > nav menu {
 	background-color: inherit;
 	color: inherit;
 	margin: 0;
 	padding: 0.25rem;
 }
-body > nav ul li {
+#top_navigation > nav menu li {
 	display: inline-block;
 	background-color: inherit;
 	color: inherit;
@@ -100,7 +103,7 @@ body > nav ul li {
 	padding: 0;
 	padding-right: var(--link-spacing-horizontal);
 }
-body > nav ul li a {
+#top_navigation > nav menu li a {
 	padding: 0.25rem 0;
 }
 body > header {
@@ -420,6 +423,16 @@ fieldset > input {
 .no-css {
 	display: none;
 }
+.sr-only {
+	position: absolute;
+	width: 1px;
+	height: 1px;
+	padding: 0;
+	margin: -1px;
+	overflow: hidden;
+	clip: rect(0, 0, 0, 0);
+	border: 0;
+}
 @media (min-width: 600px) {
 	body > header {
 		background-size: 200pt, cover;