app/views/mailer/question_answered.html.erb
<%= render('greeting') %>
<p>
<%= t('mailer.question_answered.body_html', href: opportunity_url(@question.opportunity), title: @question.opportunity.title) %>
</p>
<p class='mailer_additional_text'>
<%= format_textarea_input(@question.answer_text) %>
</p>
<p class='centered padding'>
<a class='btn-primary' href='<%= opportunity_url(@question.opportunity) %>'><%= t('view_opportunity') %> →</a>
</p>