add new button

css/style.css

@@ -40,6 +40,7 @@ header a {
 footer {
   background-color: #304B99;
   padding: 1em;
+  padding-bottom: 0;
   grid-column: 1/3;
 }
 
@@ -80,3 +81,7 @@ footer {
 #buttons {
   text-align: center;
 }
+
+#buttons div {
+  margin-bottom: 1em;
+}

footer.html

@@ -16,6 +16,7 @@
                 </a>
             </div>
             <div id="buttons">
+                <div>
                     <a href="http://www.vim.org/">
                         <img alt="Edited with vim, Improved & Free. I love my editor" src="img/vim.gif" />
                     </a>
@@ -28,6 +29,13 @@
                         <img alt="Sat no to WEB3 - Keep the web Free" src="img/keep.gif" />
                     </a>
                 </div>
+
+                <div>
+                    <a href="https://web.archive.org/web/20000817070058/http://www.early.com/~emackey/linux/">
+                        <img alt="Linux, the choice of a GNU generation" src="img/linux.gif" />
+                    </a>
+                </div>
+            </div>
         </footer>
     </body>
 </html>