Laravel - Mail - Customizing The Css
After exporting the components, the
resources/views/vendor/mail/html/themes directory will contain a
default.css file. You may customize the CSS in this file and your styles will automatically be converted to inline CSS styles within the HTML representations of your Markdown mail messages.
If you would like to build an entirely new theme for Laravel's Markdown components, you may place a CSS file within the
html/themes directory. After naming and saving your CSS file, update the
theme option of your application's
config/mail.php configuration file to match the name of your new theme.
To customize the theme for an individual mailable, you may set the
$theme property of the mailable class to the name of the theme that should be used when sending that mailable.