img { transition: all cubic-bezier(.17,.84,.44,1)0.5s; } .mw-collapsible-toggle-expanded img{ transform: rotate( 90deg ); position: relative; top: -0.1px; left: -0.5px; } .drop-shadow { filter: drop-shadow(0 0 1px LIGHTGRAY); } • 현재 페이지 URL 줄이기