Ensure flash is visible even if nav is position:fixed

app/views/shared/_flash.html.erb

-<div id="flash">
+<div id="flash" class="relative top-0.5 md:top-16">
   <% flash.each do |type, message| %>
     <div class="flash alert alert-<%= type %>">
       <%= message %>
@@ -7,4 +7,4 @@
       </button>
     </div>
   <% end %>
-</div>
\ No newline at end of file
+</div>