| PASS | Property border-block-start-width value 'calc(10px + 0.5em)' | |
| PASS | Property border-block-start-width value 'calc(10px - 0.5em)' | |
| PASS | Property border-block-start-width value 'thin' | |
| PASS | Property border-block-start-width value 'medium' | |
| PASS | Property border-block-end-width value 'calc(10px + 0.5em)' | |
| PASS | Property border-block-end-width value 'calc(10px - 0.5em)' | |
| PASS | Property border-block-end-width value 'thick' | |
| PASS | Property border-block-width value '10px' | |
| PASS | Property border-block-width value '10px 20px' | |
| PASS | Property border-block-width value '10px 10px' | |
| PASS | width is zero if the border block style is none or hidden | |