It looks like you’re mixing two types of if/else statements
<?php } elseif(get_field('wide_box')): { ?>
should be
<?php } else if ( get_field('wide_box') ) { ?>
and
<?php } endif; ?>
should just be
<?php } ?>
It looks like you’re mixing two types of if/else statements
<?php } elseif(get_field('wide_box')): { ?>
should be
<?php } else if ( get_field('wide_box') ) { ?>
and
<?php } endif; ?>
should just be
<?php } ?>