User:Ernest N. Mamikonyan/vector.css

/* Fix sidebar */ div#mw-panel { position: fixed; overflow: auto; top: 0px; bottom: 0px; height: 100%; /* Prevent content overlay when sidewards scrolling */ background-color: #F6F6F6; border-right: 1px solid #A7D7F9; } /* Prevent sidewards scrolling in pre elements */ pre { overflow: auto; max-height: 25em; }