Try fix for mobile

index.html

@@ -19,6 +19,13 @@
           column-gap: 30px;
           column-fill: balance;
     }
+
+    @media screen and (max-width: 600px) {
+      .main-content {
+       column-count: 1;
+     }
+    }      
+
     .page-header-table {
       margin-left: auto;
       margin-right: auto;
@@ -38,7 +45,7 @@
       <table class="page-header-table" border=0 cellpadding="0" cellspacing="0">
       <tr>
       <td style="border: 0">
-      <img src="pix/mulle-objc-logo-opaque-160x160.png" width="160" heigth="160">
+      <img src="pix/mulle-objc-logo-opaque-160x160.png" width="160" height="160">
       </td>
       <td style="border: 0">
       <div style="width: 40px;">&nbsp;</div>
@@ -62,7 +69,7 @@ <h2 class="project-tagline">The mulle-objc Community:<p>#MakeObjCGreatAgain</h2>
       <section class="keep-together">
       <h2>+[mulle-objc about]</h2>
 
-      <p><b><tt>mulle-objc</tt></b> enables you to write in Objective-C on
+      <b><tt>mulle-objc</tt></b> enables you to write in Objective-C on
       various platforms. It consists of the following parts:
       <p>
       <table>
@@ -106,7 +113,7 @@ <h2 id="mulle-objc-goals">+[mulle-objc goals]</h2>
       </ul>
       <p>
       See <a href="https://mulle-kybernetik.com/mulle-objc">"About mulle-objc"</a> for
-      more in-depth information and technical background.</blockquote>
+      more in-depth information and technical background.
       <p>
       </section>
 
@@ -125,7 +132,7 @@ <h2>+[mulle-objc install]</h2>
       </table>
       <p>
       See <a href="//github.com/MulleFoundation/foundation-developer">foundation-developer</a>
-      for installation instructions.</a>
+      for installation instructions.
       <p>
       Read the latest <a href="https://www.mulle-kybernetik.com/weblog/2024/mulle_objc_0_23_release.html">release announcement for version 0.23.1</a> for what's new.
       </section>
@@ -142,7 +149,7 @@ <h2>+[mulle-objc support]</h2>
       Thanks to our Sponsor(s) for supporting the project.
       <p>
         <table>
-        <tr><td><a href="https://www.jetbrains.com">Jetbrains</a></td><td><a href="https://www.jetbrains.com"><img src="//raw.githubusercontent.com/mulle-objc/mulle-objc.github.io/master/jb_beam.svg" alt="Jetbrains" width=80 height=80></td></tr>
+        <tr><td><a href="https://www.jetbrains.com">Jetbrains</a></td><td><a href="https://www.jetbrains.com"><img src="//raw.githubusercontent.com/mulle-objc/mulle-objc.github.io/master/jb_beam.svg" alt="Jetbrains" width=80 height=80></a></td></tr>
         </table>
       </section>
     </section>