.flow { width: 100%; height: 100%; } .content { width: 100%; height: 100%; display: flex; } #stencil { width: 16%; height: 100%; position: relative; border-right: 1px solid rgba(0, 0, 0, 0.08); box-sizing: border-box; } .panel { width: 69%; height: 100%; } .panel .toolbar { width: 100%; height: 38px; display: flex; align-items: center; background-color: #f7f9fb; border-bottom: 1px solid rgba(0, 0, 0, 0.08); } .panel #container { width: 100%; height: calc(100% - 38px); } .config { width: 15%; height: 100%; padding: 0 10px; border-left: 1px solid rgba(0, 0, 0, 0.08); box-sizing: border-box; }