By Phil Frilling, 19 October, 2016 Drupal 8: Add button class to the read more link of a node I stumbled across this solution to add attributes to the read more links of a node. /** * Implements template_preprocess_links() */ function MYTHEME_preprocess_links(&$variables) { $variables['links']['node-readmore']['link']['#options'][ Tags attributes Drupal 8 Links