.page{display:grid;grid-template-columns:72px 1fr 400px;grid-template-rows:56px 1fr 400px;grid-template-areas:"sidebar header header" "sidebar main main"!important;height:100vh!important}#newheader{grid-area:header;height:56px;left:72px;width:calc(100vw - 72px);width:100%!important;position:fixed;border-bottom:1px solid #a2a2a2;z-index:5;background-color:#fff}#concept{grid-area:main;overflow:auto!important;height:calc(101vh - 56px);background:#f9f9fb}#sidebar{grid-area:sidebar;position:fixed}#content1{grid-area:content1;border-left:1px solid #a2a2a2}