Avoid listing HTML attribute values within translatable string in Django template

example.html

{% blocktrans with username=request.user.username link=request.user.get_url_path css_class="btn btn-link" %}
Hello <a href="{{ link }}" class="{{ css_class }}">{{ username }}</a>!
{% endblocktrans %}

Yea exactly, like I said, you could put it into plain Bootstrap, it should work, not that I want to disparage the designer work, we all love good design, but he should not be stressed about it.