.nav-header{display:flex;flex-wrap:nowrap;padding-left:1em;justify-content:space-between;align-items:baseline;background-color:#154360;color:#fff}.sider{height:100vh;background-color:#fff;margin-bottom:5em;overflow-y:hidden;padding-bottom:2em}.content-layout{background-color:#fdfefe;height:100%;display:flex;justify-content:center;align-items:baseline;overflow-y:scroll}.course-content-list{overflow-y:scroll;height:87%}.row-column{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%}