Board Thread:Support Requests - Designing Your Wiki/@comment-36535642-20200415111453/@comment-26923519-20200415200602

Yeah, it's not supposed to do that, and I think it is an issue with the width and height set with the mask image. It's sort of odd how the entire stylesheet works perfectly in some wikis, so I think you can fix this issue by clicking on one of the icons and either increase or decrease the height and/or width in the styles panel.