Having done one of these myself a while ago, box-shadow was the only way to get the pixelated border corners. Here's the mixin I done https://github.com/padrai

Having done one of these myself a while ago, box-shadow was the only way to get the pixelated border corners. Here's the mixin I done https://github.com/padraigfl/packard-belle/blob/master/src/_scss/w98/functions/box-shadows.scss https://github.com/padraigfl/packard-belle/blob/master/src/_...