.mw-sidebar-sitename { position: fixed; visibility: visible; top: @header-height; left: @margin-side; font-size: 11px; transform: translateY( 100% ) translateX( -100% ) rotate( -90deg ); transform-origin: top right; transition: @transition-transform, @transition-opacity; -webkit-font-smoothing: subpixel-antialiased; .mw-wiki-title { letter-spacing: 4px; } } // Bypass calculation @mw-sidebar-sitename-max-width: @margin-side * 5 + @page-width; @media ( max-width: @mw-sidebar-sitename-max-width ) { .mw-sidebar-sitename { z-index: -1; // remove link opacity: 0; // hide visual } }