item-pane { flex-grow: 0; flex-shrink: 1; min-width: var(--width-available-item-pane, $min-width-item-pane + $width-sidenav); min-height: $min-width-item-pane + $width-sidenav; &[collapsed] { min-width: $width-sidenav; min-height: $width-sidenav; max-width: $width-sidenav; visibility: inherit; &.stacked { max-width: unset; max-height: $width-sidenav; } #zotero-item-pane-content { visibility: collapse; } } &.stacked { flex-direction: column; height: 0px; #zotero-item-pane-content { width: 100%; } } #batch-edit-prompt-message { padding: 3px 8px; } }