ore e allegati

resources/views/vendor/mail/html/header.blade.php

     $logoPath = public_path('assets/img/ElephanTech_logo.png');
 @endphp
 @if (file_exists($logoPath) && isset($message))
-<img src="{{ $message->embed($logoPath) }}" class="logo" alt="{{ config('app.name') }}">
+<img src="{{ $message->embed($logoPath) }}" class="logo" width="160" height="100" style="display:block;width:160px;max-width:160px;height:auto;border:0;" alt="{{ config('app.name') }}">
 @elseif (file_exists($logoPath))
-<img src="{{ asset('assets/img/ElephanTech_logo.png') }}" class="logo" alt="{{ config('app.name') }}">
+<img src="{{ asset('assets/img/ElephanTech_logo.png') }}" class="logo" width="160" height="100" style="display:block;width:160px;max-width:160px;height:auto;border:0;" alt="{{ config('app.name') }}">
 @else
 <span class="brand-name">{{ config('app.name') }}</span>
 @endif

resources/views/vendor/mail/html/themes/default.css

 /* Logo */
 
 .logo {
+    border: 0;
+    display: block;
     height: auto;
     margin: 0 auto;
-    max-height: 56px;
-    max-width: 200px;
-    width: auto;
+    max-height: 100px;
+    max-width: 160px;
+    width: 160px;
 }
 
 /* Body */