remove border

app/views/shared/_flash.html.erb

@@ -1,6 +1,6 @@
 <div id="flash" class="absolute top-0 w-full h-0 z-20">
   <div class="max-w-xl mx-auto mt-1.5">
-    <div class="px-4 py-3 rounded-2xl bg-base-200 border border-base-content/30 flex items-center justify-between mx-4 md:mx-0">
+    <div class="px-4 py-3 rounded-2xl bg-base-200 flex items-center justify-between mx-4 md:mx-0">
       <div class="flex items-center space-x-3">
         <% if flash[:notice] %>
           <%= svg_icon('info_circle', class: 'stroke-info flex-none w-6 h-6') %>