diff --git a/app/assets/stylesheets/zammad.css.scss b/app/assets/stylesheets/zammad.css.scss
index 03babfe72..b898da534 100644
--- a/app/assets/stylesheets/zammad.css.scss
+++ b/app/assets/stylesheets/zammad.css.scss
@@ -43,6 +43,12 @@ blockquote {
   font-size: inherit;
 }
 
+#app {
+  display: flex;
+  min-width: 1024px;
+  height: 100%;
+}
+
 .u-unclickable {
   pointer-events: none;
 }
diff --git a/app/views/init/index.html.erb b/app/views/init/index.html.erb
index aa003bb16..ba73f0ec0 100644
--- a/app/views/init/index.html.erb
+++ b/app/views/init/index.html.erb
@@ -1,7 +1,7 @@
 <div style="height: 0; width: 0; position: absolute; visibility: hidden">
   <%= inline_svg('icons.svg') %>
 </div>
-<div id="app" class="fit horizontal"></div>
+<div id="app"></div>
 <div id="splash">
   <div class="logo">booting...</div>
 </div>
\ No newline at end of file