Fix header search bar in safari

app/assets/stylesheets/mobile/header.css.scss

@@ -70,14 +70,17 @@ header {
   -webkit-box-shadow: -2px 0px 2px 1px #333;
 
   header {
+    position: static;
     left: 100%;
     right: -80%;
     
     #global_search {
-      margin-left: 10px;
+      position: relative;
 
       form {
-        margin-right: 20px;
+        position: absolute;
+        left: 5px;
+        right: 15px;
 
         input {
           @include box-shadow(0, 1px, 1px, #444);

app/views/layouts/application.mobile.haml

@@ -76,7 +76,6 @@
                 %div
                   = hidden_field_tag "utf8", "✓"
                   = search_field_tag "q", nil, id: "q", placeholder: t("search"), results: "5", autocomplete: "off", class: "ac_input"
-
           %nav
             %ul
               %li