banzai checkbox rendering

In the mobile builder we have some apps where we render checkboxes as YES / NO and we have localized this to the Swedish JA / NEJ. We have done this with the following CSS

input[type=checkbox]:before { content: 'NEJ'; } input[type=checkbox]:checked:before { content: 'JA'; }

When upgrading to Banzai this no longer works and the checkbox is displayed as a switch instead.