Accessibility Updates (#16633)

* Fixed accessibility issues in home page

Signed-off-by: ChaitanyaKaranam <karanam.krishna.25@gmail.com>

* Fixed accessibility issues for docs/home page

Signed-off-by: chaitanyakaranam <chaitanya.karanam@yahoo.com>

* Fixed accessibility issues for /partners page

Signed-off-by: chaitanyakaranam <chaitanya.karanam@yahoo.com>

* Fixed accessibility issues for /community page

Signed-off-by: chaitanyakaranam <chaitanya.karanam@yahoo.com>

* Update layouts/partials/header.html

Co-Authored-By: Tim Bannister <tim@scalefactory.com>

* Update layouts/partials/footer-scripts.html

Co-Authored-By: Tim Bannister <tim@scalefactory.com>

* Update layouts/index.html

Co-Authored-By: Tim Bannister <tim@scalefactory.com>

* Update content/en/partners/_index.html

Co-Authored-By: Tim Bannister <tim@scalefactory.com>

* Update content/en/community/_index.html

Co-Authored-By: Tim Bannister <tim@scalefactory.com>

* Added missing quotes

* Added landmark roles for search bar and footer

Signed-off-by: chaitanyakaranam <chaitanya.karanam@yahoo.com>

* Changed images alt text

Changed alt text from 'kubernetes community' to 'Kubernetes Conference Gallery'

* Removed verb from iframe title

Signed-off-by: chaitanyakaranam <chaitanya.karanam@yahoo.com>

* Change alt text for GitHub image

Co-Authored-By: Tim Bannister <tim@scalefactory.com>

* Few alt text changes

* Modified alt text

layouts/partials/docs/top-menu.html

@@ -15,7 +15,7 @@
 		<li><a href="{{ .RelPermalink }}"{{ if $yah }} class="YAH"{{ end }}>{{ .LinkTitle | upper }}</a></li>
 		{{ end }}
 	</ul>
-	<form id="searchBox" action="/docs/search/">
+	<form id="searchBox" action="/docs/search/" role="search">
 		<input type="text" id="search" name="q" placeholder="{{ T "ui_search_placeholder" }}" aria-label="Search">
 	</form>
 </div>

layouts/partials/footer-scripts.html

@@ -1,4 +1,4 @@
-<button class="flyout-button" onclick="kub.toggleToc()"></button>
+<button class="flyout-button" onclick="kub.toggleToc()" aria-label="Toggle table of contents visibility"></button>
 
 <script>
 // hide docs nav area if no nav is present, or if nav only contains a link to the current page

layouts/partials/footer.html

@@ -7,7 +7,7 @@
             {{ with site.GetPage "section" . }}<a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a>{{ end }}
             {{ end }}
         </nav>
-        <div class="social">
+        <div class="social" role="region" aria-label="Social hyperlinks">
             <div>
                 <a href="https://twitter.com/kubernetesio" class="twitter"><span>{{ T "community_twitter_name" }}</span></a>
                 <a href="https://github.com/kubernetes/kubernetes" class="github"><span>{{ T "community_github_name" }}</span></a>
@@ -23,13 +23,13 @@
                 <a href="https://git.k8s.io/community/contributors/guide" class="button">{{ T "main_contribute" }}</a>
             </div>
         </div>
-        <div id="miceType" class="center">
+        <div class="miceType center">
             &copy; {{ now.Year }} {{ T "main_documentation_license" | safeHTML }}</a>
         </div>
-        <div id="miceType" class="center">
+        <div class="miceType center">
             Copyright &copy; {{ now.Year }} {{ T "main_copyright_notice" | safeHTML }}
         </div>
-        <div id="miceType" class="center">
+        <div class="miceType center">
             ICP license: 京ICP备17074266号-3
         </div>
     </main>

layouts/partials/header.html

@@ -1,7 +1,7 @@
 <div id="cellophane" onclick="kub.toggleMenu()"></div>
 
 <header>
-    <a href="{{ site.Home.RelPermalink }}" class="logo"></a>
+    <a href="{{ site.Home.RelPermalink }}" class="logo" title="Production-Grade Container Orchestration - Kubernetes" aria-label="Kubernetes website"></a>
 
     <div class="nav-buttons" data-auto-burger="primary">
         <ul class="global-nav">