.linearRound:first-child span{border-start-start-radius:8px;border-end-start-radius:8px}.linearRound:last-child span{border-start-end-radius:8px;border-end-end-radius:8px}.header:after{content:"";position:absolute;inset-block-end:-14px;inset-inline-start:0;block-size:10px;inline-size:2px;background-color:var(--mui-palette-divider)}