Hi all I've just enabled tests with PHP 7.1 on Travis for master branch. This reveals several problems as it does have stricter number validation in calculations.  So doing things like '16px' * 2 will no longer work without warning (and test failure). I've fixed some of those, but some are still to be fixed ... -- Michal Čihař | https://cihar.com/ | https://weblate.org/