Fix for BIESt #104

resources/assets/stylesheets/less/skiplinks.less

@@ -25,6 +25,15 @@
     display: none;
 }
 
+button.skiplink {
+    border: 0;
+    background-color: #fff;
+    color: @base-color;
+    line-height: 1em;
+    margin-bottom: 0.1em;
+}
+
+
 body.enable-skiplinks {
     *:not(:empty):focus {
         outline: 2px dashed @orange;

templates/skiplinks.php

@@ -7,7 +7,7 @@
     <? foreach ($navigation as $nav) : ?>
         <li>
         <? if (mb_substr($url = $nav->getURL(), 0, 1) == '#') : ?>
-            <a href="<?= $url ?>" onclick="STUDIP.SkipLinks.setActiveTarget('<?= $url ?>');"  tabindex="<?= $i++ ?>"><?= htmlReady($nav->getTitle()) ?></a>
+            <button class="skiplink" role="link" onclick="STUDIP.SkipLinks.setActiveTarget('<?= htmlReady($url) ?>');" tabindex="<?= $i++ ?>"><?= htmlReady($nav->getTitle()) ?></button>
         <? else : ?>
             <? if (is_internal_url($url)) : ?>
                 <a href="<?= URLHelper::getLink($url) ?>" tabindex="<?= $i++ ?>"><?= htmlReady($nav->getTitle()) ?></a>