Test that setting and getting grid-template-columns and grid-template-rows works as expected On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Test getting grid-template-columns and grid-template-rows set through CSS PASS window.getComputedStyle(gridWithNoneElement, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(gridWithNoneElement, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(gridWithFixedElement, '').getPropertyValue('grid-template-columns') is "10px" PASS window.getComputedStyle(gridWithFixedElement, '').getPropertyValue('grid-template-rows') is "15px" PASS window.getComputedStyle(gridWithPercentElement, '').getPropertyValue('grid-template-columns') is "53%" PASS window.getComputedStyle(gridWithPercentElement, '').getPropertyValue('grid-template-rows') is "27%" PASS window.getComputedStyle(gridWithAutoElement, '').getPropertyValue('grid-template-columns') is "auto" PASS window.getComputedStyle(gridWithAutoElement, '').getPropertyValue('grid-template-rows') is "auto" PASS window.getComputedStyle(gridWithEMElement, '').getPropertyValue('grid-template-columns') is "100px" PASS window.getComputedStyle(gridWithEMElement, '').getPropertyValue('grid-template-rows') is "150px" PASS window.getComputedStyle(gridWithViewPortPercentageElement, '').getPropertyValue('grid-template-columns') is "64px" PASS window.getComputedStyle(gridWithViewPortPercentageElement, '').getPropertyValue('grid-template-rows') is "60px" PASS window.getComputedStyle(gridWithMinMax, '').getPropertyValue('grid-template-columns') is "minmax(10%, 15px)" PASS window.getComputedStyle(gridWithMinMax, '').getPropertyValue('grid-template-rows') is "minmax(20px, 50%)" PASS window.getComputedStyle(gridWithMinContent, '').getPropertyValue('grid-template-columns') is "min-content" PASS window.getComputedStyle(gridWithMinContent, '').getPropertyValue('grid-template-rows') is "min-content" PASS window.getComputedStyle(gridWithMaxContent, '').getPropertyValue('grid-template-columns') is "max-content" PASS window.getComputedStyle(gridWithMaxContent, '').getPropertyValue('grid-template-rows') is "max-content" PASS window.getComputedStyle(gridWithFraction, '').getPropertyValue('grid-template-columns') is "1fr" PASS window.getComputedStyle(gridWithFraction, '').getPropertyValue('grid-template-rows') is "2fr" PASS window.getComputedStyle(gridWithCalc, '').getPropertyValue('grid-template-columns') is "150px" PASS window.getComputedStyle(gridWithCalc, '').getPropertyValue('grid-template-rows') is "75px" PASS window.getComputedStyle(gridWithCalcComplex, '').getPropertyValue('grid-template-columns') is "calc(50% + 150px)" PASS window.getComputedStyle(gridWithCalcComplex, '').getPropertyValue('grid-template-rows') is "calc(65% + 75px)" PASS window.getComputedStyle(gridWithCalcInsideMinMax, '').getPropertyValue('grid-template-columns') is "minmax(10%, 15px)" PASS window.getComputedStyle(gridWithCalcInsideMinMax, '').getPropertyValue('grid-template-rows') is "minmax(20px, 50%)" PASS window.getComputedStyle(gridWithCalcComplexInsideMinMax, '').getPropertyValue('grid-template-columns') is "minmax(10%, calc(50% + 15px))" PASS window.getComputedStyle(gridWithCalcComplexInsideMinMax, '').getPropertyValue('grid-template-rows') is "minmax(calc(10% + 20px), 50%)" PASS window.getComputedStyle(gridWithAutoInsideMinMax, '').getPropertyValue('grid-template-columns') is "minmax(auto, 20px)" PASS window.getComputedStyle(gridWithAutoInsideMinMax, '').getPropertyValue('grid-template-rows') is "minmax(min-content, auto)" Test getting wrong values for grid-template-columns and grid-template-rows through CSS (they should resolve to the default: 'none') PASS window.getComputedStyle(gridWithFitContentElement, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(gridWithFitContentElement, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(gridWithFitAvailableElement, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(gridWithFitAvailableElement, '').getPropertyValue('grid-template-rows') is "none" Test the initial value PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is 'none' PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is 'none' Test getting and setting grid-template-columns and grid-template-rows through JS PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "18px" PASS element.style.gridTemplateColumns is "18px" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "66px" PASS element.style.gridTemplateRows is "66px" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "55%" PASS element.style.gridTemplateColumns is "55%" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "40%" PASS element.style.gridTemplateRows is "40%" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "auto" PASS element.style.gridTemplateColumns is "auto" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "auto" PASS element.style.gridTemplateRows is "auto" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "80px" PASS element.style.gridTemplateColumns is "10vw" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "150px" PASS element.style.gridTemplateRows is "25vh" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "min-content" PASS element.style.gridTemplateColumns is "min-content" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "min-content" PASS element.style.gridTemplateRows is "min-content" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "max-content" PASS element.style.gridTemplateColumns is "max-content" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "max-content" PASS element.style.gridTemplateRows is "max-content" Test getting and setting grid-template-columns and grid-template-rows to minmax() values through JS PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "minmax(55%, 45px)" PASS element.style.gridTemplateColumns is "minmax(55%, 45px)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "minmax(30px, 40%)" PASS element.style.gridTemplateRows is "minmax(30px, 40%)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "minmax(220px, 48px)" PASS element.style.gridTemplateColumns is "minmax(22em, 8vh)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "minmax(80px, 50px)" PASS element.style.gridTemplateRows is "minmax(10vw, 5em)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "minmax(min-content, 48px)" PASS element.style.gridTemplateColumns is "minmax(min-content, 8vh)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "minmax(80px, min-content)" PASS element.style.gridTemplateRows is "minmax(10vw, min-content)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "minmax(220px, max-content)" PASS element.style.gridTemplateColumns is "minmax(22em, max-content)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "minmax(max-content, 50px)" PASS element.style.gridTemplateRows is "minmax(max-content, 5em)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "minmax(min-content, max-content)" PASS element.style.gridTemplateColumns is "minmax(min-content, max-content)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "minmax(max-content, min-content)" PASS element.style.gridTemplateRows is "minmax(max-content, min-content)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "3600fr" PASS element.style.gridTemplateColumns is "3600fr" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "154fr" PASS element.style.gridTemplateRows is "154fr" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "3.1459fr" PASS element.style.gridTemplateColumns is "3.1459fr" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "2.718fr" PASS element.style.gridTemplateRows is "2.718fr" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "3fr" PASS element.style.gridTemplateColumns is "3fr" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "4fr" PASS element.style.gridTemplateRows is "4fr" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "minmax(auto, 48px)" PASS element.style.gridTemplateColumns is "minmax(auto, 8vh)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "minmax(80px, auto)" PASS element.style.gridTemplateRows is "minmax(10vw, auto)" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "0px" PASS element.style.gridTemplateColumns is "0fr" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "0px" PASS element.style.gridTemplateRows is "0fr" Test setting grid-template-columns and grid-template-rows to bad values through JS PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS window.getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" Test setting grid-template-columns and grid-template-rows back to 'none' through JS PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "18px" PASS element.style.gridTemplateColumns is "18px" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "66px" PASS element.style.gridTemplateRows is "66px" PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is "none" PASS element.style.gridTemplateColumns is "none" PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is "none" PASS element.style.gridTemplateRows is "none" Test setting grid-template-columns and grid-template-rows to 'inherit' through JS PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is '50px [last]' PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is '[first] 101%' Test setting grid-template-columns and grid-template-rows to 'initial' through JS PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is '150% [last]' PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is '[first] 1fr' PASS getComputedStyle(element, '').getPropertyValue('grid-template-columns') is 'none' PASS getComputedStyle(element, '').getPropertyValue('grid-template-rows') is 'none' PASS successfullyParsed is true TEST COMPLETE