n:nth-child(4) { font-size:20px; }

.pbs { padding-block-start: 15px; margin-block-start: 5px; }
.pbe { padding-block-end: 7px; margin-block-end: 3px; }

.fb { place-self:first baseline self-start; }
.lb { place-self:last baseline self-end; }
.s  { justify-self:stretch; }

.sfb { align-self:baseline; }
.slb { align-self:last baseline; align-content:self-end;}

.hl { writing-mode: horizontal-tb; direction:ltr; }
.hr { writing-mode: horizontal-tb; direction:rtl; }
.vl { writing-mode: vertical-lr; text-orienta