*,*:after,*:before{box-sizing:border-box;margin:0;padding:0;--nav-bar-height: 64px}body{font-family:sans-serif;width:100%;height:100vh;display:flex;justify-content:center;align-items:flex-start;padding:calc(var(--nav-bar-height) + 20px) 10px 20px 10px}