{{ q_field(class="form-select form-select-sm" + (" is-invalid" if q_field.errors else "")) }}
{% if q_field.errors %}
{% for e in q_field.errors %}{{ e }}{% endfor %}
{% endif %}
{{ a_field(class="form-control form-control-sm" + (" is-invalid" if a_field.errors else ""),
placeholder="Answer (not case-sensitive)") }}
{% if a_field.errors %}
{% for e in a_field.errors %}{{ e }}{% endfor %}
{% endif %}