.GJZdX{border-left:var(--sidebar-border-width) solid var(--color-background-book-sidebar);border-right:var(--sidebar-border-width) double var(--color-background-book-sidebar);display:flex;flex-direction:column;padding:var(--sidebar-padding);position:relative;transition:border-radius .2s ease-in-out;-webkit-user-select:none;-moz-user-select:none;user-select:none;z-index:1}.GJZdX:after{background:var(--color-background-book-sidebar);bottom:0;content:"";left:0;position:absolute;right:0;top:0;z-index:-1}.concealed .GJZdX{border-left:var(--sidebar-border-width) double var(--color-background-book-sidebar);border-radius:var(--concealed-border-radius);border-right:var(--sidebar-border-width) double var(--color-background-book-sidebar)}.XGM2j{flex:1 1}