.plugin-maximise-active-pane .workspace-split.maximised .workspace-leaf:not(.mod-active),
.plugin-maximise-active-pane .workspace-split.maximised .workspace-leaf.mod-active ~ .workspace-split {
  display: none;
}
.plugin-maximise-active-pane .workspace-split.maximised .workspace-leaf.mod-active {
  flex-basis: calc(100% - 4px);
}