| PASS Default column-gap is 'normal' | |
| PASS column-gap accepts pixels | |
| PASS column-gap accepts em | |
| PASS column-gap accepts vw | |
| PASS column-gap accepts percentage | |
| PASS column-gap accepts calc() | |
| PASS column-gap accepts calc() mixing fixed and percentage values | |
| PASS Initial column-gap is 'normal' | |
| PASS Initial column-gap is 'normal' 2 | |
| PASS Initial inherited column-gap is 'normal' | |
| PASS column-gap is inheritable | |
| PASS Negative column-gap is invalid | |
| PASS 'max-content' column-gap is invalid | |
| PASS 'none' column-gap is invalid | |
| PASS column-gap with multiple values is invalid | |
| PASS Angle column-gap is invalid | |
| PASS Resolution column-gap is invalid | |
| PASS Time column-gap is invalid | |