Custom class breaks html tag

[juliawarnke]

the pre-tag will be torn apart like this, when adding custom classes to pre and p:

How it should look like:

Markdown config:
'styles' => [ 'default' => [ 'pre' => 'border overflow-auto p-3', 'p' => 'mb-4', ], ],

[jonassiewertsen]

Good catch!

It's related, as we don't check for any allowed characters after the tag-name.

Right now, the class replacement does work via a simple str_replace. It will be solved, by using a stable regex expression, as this is needed to resolve #10 as well.