#helloPanel { border: 1px rgb(189, 119, 119) dashed; } .plugin-sample { &__custom-tab { background-color: var(--b3-theme-background); height: 100%; width: 100%; display: flex; justify-content: center; align-items: center; } &__custom-dock { display: flex; justify-content: center; align-items: center; } &__time { background: var(--b3-card-info-background); border-radius: 4px; padding: 2px 8px; } }