@keyframes open_sidebar{0%{transform:translateX(-250px)}to{transform:translateX(0)}}.open-sidebar{transform:translateX(0);animation-name:open_sidebar;animation-duration:.3s}@keyframes close_sidebar{0%{transform:translateX(0)}to{transform:translateX(-250px)}}.close-sidebar{transform:translateX(-250px);animation-name:close_sidebar;animation-duration:.3s}