Full screen Reveal in Foundation 4.3.1 on small screens I think modals (i.e. Reveal) are broken on small screens when they contain a form. I've introduced a new class 'full-on-small' which will expand modals to 100% width on small screens. This is a drop in solution, I've also attempted to solve this in a different manner upstream: https://githu…

_full_reveal.scss

@media screen and (max-width: $small-screen) {
  .#{$reveal-modal-class} {
    &.full-on-small {
      top: 0;
      margin-#{$default-float}: 0;
      #{$default-float}: 0;
      width: 100%;
    }
  }
}