$queried_object = get_queried_object();
$taxonomy = $queried_object->taxonomy;
$term_id = $queried_object->term_id;
// load desc for this taxonomy term (term object)
$thumbnail = get_field('category_description', $queried_object);
// load desc for this taxonomy term (term string)
$thumbnail = get_field('category_description', $taxonomy . '_' . $term_id);
echo '<p class="dop_widget_p">' . get_field( 'category_description', $queried_object ) . '</p>';
Wrap the text in a tag and add style