Resolve "Rewrite theme"

Closes #1

style.css

@@ -7,7 +7,7 @@
  * Author: personads :: Maximilian Müller-Eberstein (ursprüngliche Version und Design); Jakob Moser (Code-Rewrite)
  * Author URI: https://personads.me/
  *
- * Version: 1.00-snapshot-49
+ * Version: 1.0.0-rc.1
  *
  * License: GNU General Public License v3.0
  * License URI: https://www.gnu.org/licenses/gpl-3.0.html
@@ -254,6 +254,7 @@ header nav li:hover > ul {
 @media (max-width: 615px) {
     body > header {
         padding-top: 5px;
+        position: static;
     }
 
     body > header .logo {