Test that setting and getting grid-definition-columns and grid-definition-rows works as expected On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Test getting |grid-definition-columns| and |grid-definition-rows| set through CSS PASS window.getComputedStyle(gridWithFixedElement, '').getPropertyValue('-webkit-grid-definition-columns') is "7px 11px" PASS window.getComputedStyle(gridWithFixedElement, '').getPropertyValue('-webkit-grid-definition-rows') is "17px 2px" PASS window.getComputedStyle(gridWithPercentElement, '').getPropertyValue('-webkit-grid-definition-columns') is "53% 99%" PASS window.getComputedStyle(gridWithPercentElement, '').getPropertyValue('-webkit-grid-definition-rows') is "27% 52%" PASS window.getComputedStyle(gridWithAutoElement, '').getPropertyValue('-webkit-grid-definition-columns') is "auto auto" PASS window.getComputedStyle(gridWithAutoElement, '').getPropertyValue('-webkit-grid-definition-rows') is "auto auto" PASS window.getComputedStyle(gridWithEMElement, '').getPropertyValue('-webkit-grid-definition-columns') is "100px 120px" PASS window.getComputedStyle(gridWithEMElement, '').getPropertyValue('-webkit-grid-definition-rows') is "150px 170px" PASS window.getComputedStyle(gridWithThreeItems, '').getPropertyValue('-webkit-grid-definition-columns') is "15px auto 100px" PASS window.getComputedStyle(gridWithThreeItems, '').getPropertyValue('-webkit-grid-definition-rows') is "120px 18px auto" PASS window.getComputedStyle(gridWithPercentAndViewportPercent, '').getPropertyValue('-webkit-grid-definition-columns') is "50% 120px" PASS window.getComputedStyle(gridWithPercentAndViewportPercent, '').getPropertyValue('-webkit-grid-definition-rows') is "35% 168px" PASS window.getComputedStyle(gridWithFitContentAndFitAvailable, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(gridWithFitContentAndFitAvailable, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(gridWithMinMaxContent, '').getPropertyValue('-webkit-grid-definition-columns') is "-webkit-min-content -webkit-max-content" PASS window.getComputedStyle(gridWithMinMaxContent, '').getPropertyValue('-webkit-grid-definition-rows') is "-webkit-max-content -webkit-min-content" PASS window.getComputedStyle(gridWithMinMaxAndFixed, '').getPropertyValue('-webkit-grid-definition-columns') is "minmax(45px, 30%) 15px" PASS window.getComputedStyle(gridWithMinMaxAndFixed, '').getPropertyValue('-webkit-grid-definition-rows') is "120px minmax(35%, 10px)" PASS window.getComputedStyle(gridWithMinMaxAndMinMaxContent, '').getPropertyValue('-webkit-grid-definition-columns') is "minmax(-webkit-min-content, 30%) 15px" PASS window.getComputedStyle(gridWithMinMaxAndMinMaxContent, '').getPropertyValue('-webkit-grid-definition-rows') is "120px minmax(35%, -webkit-max-content)" PASS window.getComputedStyle(gridWithFractionFraction, '').getPropertyValue('-webkit-grid-definition-columns') is "1fr 2fr" PASS window.getComputedStyle(gridWithFractionFraction, '').getPropertyValue('-webkit-grid-definition-rows') is "3fr 4fr" PASS window.getComputedStyle(gridWithFractionMinMax, '').getPropertyValue('-webkit-grid-definition-columns') is "minmax(-webkit-min-content, 45px) 2fr" PASS window.getComputedStyle(gridWithFractionMinMax, '').getPropertyValue('-webkit-grid-definition-rows') is "3fr minmax(14px, -webkit-max-content)" Test the initial value PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is 'none' PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is 'none' Test getting and setting grid-definition-rows and grid-definition-columns through JS PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "18px 22px" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "66px 70px" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "55% 80%" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "40% 63%" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "auto auto" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "auto auto" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "auto 160px 22px" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "56% 100px auto" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "160px minmax(16px, 20px)" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "minmax(10%, 15%) auto" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "160px 2fr" PASS getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "14fr auto" Test getting wrong values set from CSS PASS window.getComputedStyle(gridWithNoneAndAuto, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(gridWithNoneAndAuto, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(gridWithNoneAndFixed, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(gridWithNoneAndFixed, '').getPropertyValue('-webkit-grid-definition-rows') is "none" Test setting and getting wrong values from JS PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" Test setting grid-definition-columns and grid-definition-rows to 'inherit' through JS PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "50px 1fr last" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "101% middle 45px" Test setting grid-definition-columns and grid-definition-rows to 'initial' through JS PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "150% middle 55px" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "1fr line 2fr line" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('-webkit-grid-definition-rows') is "none" PASS successfullyParsed is true TEST COMPLETE