diff --git a/packages/happy-dom/test/css/declaration/data/CSSStyleDeclarationMockedProperties.ts b/packages/happy-dom/test/css/declaration/data/CSSStyleDeclarationMockedProperties.ts
deleted file mode 100644
index f3651cd11..000000000
--- a/packages/happy-dom/test/css/declaration/data/CSSStyleDeclarationMockedProperties.ts
+++ /dev/null
@@ -1,307 +0,0 @@
-export default {
-	'accent-color': 'auto',
-	'align-content': 'normal',
-	'align-items': 'normal',
-	'align-self': 'auto',
-	'alignment-baseline': 'auto',
-	'animation-delay': '0s',
-	'animation-direction': 'normal',
-	'animation-duration': '0s',
-	'animation-fill-mode': 'none',
-	'animation-iteration-count': '1',
-	'animation-name': 'none',
-	'animation-play-state': 'running',
-	'animation-timing-function': 'ease',
-	'app-region': 'none',
-	appearance: 'none',
-	'backdrop-filter': 'none',
-	'backface-visibility': 'visible',
-	background:
-		'center / contain no-repeat url("../../media/examples/firefox-logo.svg"), #eee 35% url("../../media/examples/lizard.png")',
-	'background-attachment': 'scroll',
-	'background-blend-mode': 'normal',
-	'background-clip': 'border-box',
-	'background-color': 'rgba(0, 0, 0, 0)',
-	'background-image': 'none',
-	'background-origin': 'padding-box',
-	'background-position': '0% 0%',
-	'background-repeat': 'repeat',
-	'background-size': 'auto',
-	'baseline-shift': '0px',
-	'block-size': 'auto',
-	border: '1rem solid red',
-	'border-top': '1rem solid red',
-	'border-right': '1rem solid red',
-	'border-bottom': '1rem solid red',
-	'border-left': '1rem solid red',
-	'border-block-end-color': 'rgb(0, 0, 0)',
-	'border-block-end-style': 'none',
-	'border-block-end-width': '0px',
-	'border-block-start-color': 'rgb(0, 0, 0)',
-	'border-block-start-style': 'none',
-	'border-block-start-width': '0px',
-	'border-bottom-color': 'rgb(0, 0, 0)',
-	'border-bottom-left-radius': '0px',
-	'border-bottom-right-radius': '0px',
-	'border-bottom-style': 'none',
-	'border-bottom-width': '0px',
-	'border-collapse': 'separate',
-	'border-end-end-radius': '0px',
-	'border-end-start-radius': '0px',
-	'border-image-outset': '0',
-	'border-image-repeat': 'stretch',
-	'border-image-slice': '100%',
-	'border-image-source': 'none',
-	'border-image-width': '1',
-	'border-inline-end-color': 'rgb(0, 0, 0)',
-	'border-inline-end-style': 'none',
-	'border-inline-end-width': '0px',
-	'border-inline-start-color': 'rgb(0, 0, 0)',
-	'border-inline-start-style': 'none',
-	'border-inline-start-width': '0px',
-	'border-left-color': 'rgb(0, 0, 0)',
-	'border-left-style': 'none',
-	'border-left-width': '0px',
-	'border-right-color': 'rgb(0, 0, 0)',
-	'border-right-style': 'none',
-	'border-right-width': '0px',
-	'border-start-end-radius': '0px',
-	'border-start-start-radius': '0px',
-	'border-top-color': 'rgb(0, 0, 0)',
-	'border-top-left-radius': '0px',
-	'border-top-right-radius': '0px',
-	'border-top-style': 'none',
-	'border-top-width': '0px',
-	'border-radius': '1px 2px 3px 4px',
-	bottom: 'auto',
-	'box-shadow': 'none',
-	'box-sizing': 'content-box',
-	'break-after': 'auto',
-	'break-before': 'auto',
-	'break-inside': 'auto',
-	'buffered-rendering': 'auto',
-	'caption-side': 'top',
-	'caret-color': 'rgb(0, 0, 0)',
-	clear: 'none',
-	clip: 'auto',
-	'clip-path': 'none',
-	'clip-rule': 'nonzero',
-	color: 'rgb(0, 0, 0)',
-	'color-interpolation': 'srgb',
-	'color-interpolation-filters': 'linearrgb',
-	'color-rendering': 'auto',
-	'column-count': 'auto',
-	'column-gap': 'normal',
-	'column-rule-color': 'rgb(0, 0, 0)',
-	'column-rule-style': 'none',
-	'column-rule-width': '0px',
-	'column-span': 'none',
-	'column-width': 'auto',
-	'contain-intrinsic-block-size': 'none',
-	'contain-intrinsic-height': 'none',
-	'contain-intrinsic-inline-size': 'none',
-	'contain-intrinsic-size': 'none',
-	'contain-intrinsic-width': 'none',
-	content: 'normal',
-	cursor: 'auto',
-	cx: '0px',
-	cy: '0px',
-	d: 'none',
-	direction: 'ltr',
-	display: 'inline',
-	'dominant-baseline': 'auto',
-	'empty-cells': 'show',
-	fill: 'rgb(0, 0, 0)',
-	'fill-opacity': '1',
-	'fill-rule': 'nonzero',
-	filter: 'none',
-	flex: '1 2 fill',
-	'flex-basis': 'auto',
-	'flex-direction': 'row',
-	'flex-grow': '0',
-	'flex-shrink': '1',
-	'flex-wrap': 'nowrap',
-	float: 'none',
-	'flood-color': 'rgb(0, 0, 0)',
-	'flood-opacity': '1',
-	font: 'italic small-caps bold 2rem/2.2 cursive',
-	'font-family': 'Roboto, system-ui, sans-serif',
-	'font-kerning': 'auto',
-	'font-optical-sizing': 'auto',
-	'font-palette': 'normal',
-	'font-size': '13px',
-	'font-stretch': '100%',
-	'font-style': 'normal',
-	'font-synthesis-small-caps': 'auto',
-	'font-synthesis-style': 'auto',
-	'font-synthesis-weight': 'auto',
-	'font-variant': 'normal',
-	'font-variant-caps': 'normal',
-	'font-variant-east-asian': 'normal',
-	'font-variant-ligatures': 'normal',
-	'font-variant-numeric': 'normal',
-	'font-weight': '400',
-	'grid-auto-columns': 'auto',
-	'grid-auto-flow': 'row',
-	'grid-auto-rows': 'auto',
-	'grid-column-end': 'auto',
-	'grid-column-start': 'auto',
-	'grid-row-end': 'auto',
-	'grid-row-start': 'auto',
-	'grid-template-areas': 'none',
-	'grid-template-columns': 'none',
-	'grid-template-rows': 'none',
-	height: 'auto',
-	hyphens: 'manual',
-	'image-orientation': 'from-image',
-	'image-rendering': 'auto',
-	'inline-size': 'auto',
-	'inset-block-end': 'auto',
-	'inset-block-start': 'auto',
-	'inset-inline-end': 'auto',
-	'inset-inline-start': 'auto',
-	isolation: 'auto',
-	'justify-content': 'normal',
-	'justify-items': 'normal',
-	'justify-self': 'auto',
-	left: 'auto',
-	'letter-spacing': 'normal',
-	'lighting-color': 'rgb(255, 255, 255)',
-	'line-break': 'auto',
-	'line-height': 'normal',
-	'list-style-image': 'none',
-	'list-style-position': 'outside',
-	'list-style-type': 'disc',
-	margin: '1px 2px 3px 4px',
-	'margin-block-end': '0px',
-	'margin-block-start': '0px',
-	'margin-bottom': '0px',
-	'margin-inline-end': '0px',
-	'margin-inline-start': '0px',
-	'margin-left': '0px',
-	'margin-right': '0px',
-	'margin-top': '0px',
-	'marker-end': 'none',
-	'marker-mid': 'none',
-	'marker-start': 'none',
-	'mask-type': 'luminance',
-	'max-block-size': 'none',
-	'max-height': 'none',
-	'max-inline-size': 'none',
-	'max-width': 'none',
-	'min-block-size': '0px',
-	'min-height': '0px',
-	'min-inline-size': '0px',
-	'min-width': '0px',
-	'mix-blend-mode': 'normal',
-	'object-fit': 'fill',
-	'object-position': '50% 50%',
-	'offset-distance': '0px',
-	'offset-path': 'none',
-	'offset-rotate': 'auto 0deg',
-	opacity: '1',
-	order: '0',
-	orphans: '2',
-	'outline-color': 'rgb(0, 0, 0)',
-	'outline-offset': '0px',
-	'outline-style': 'none',
-	'outline-width': '0px',
-	'overflow-anchor': 'auto',
-	'overflow-clip-margin': '0px',
-	'overflow-wrap': 'normal',
-	'overflow-x': 'visible',
-	'overflow-y': 'visible',
-	'overscroll-behavior-block': 'auto',
-	'overscroll-behavior-inline': 'auto',
-	padding: '1px 2px 3px 4px',
-	'padding-block-end': '0px',
-	'padding-block-start': '0px',
-	'padding-bottom': '0px',
-	'padding-inline-end': '0px',
-	'padding-inline-start': '0px',
-	'padding-left': '0px',
-	'padding-right': '0px',
-	'padding-top': '0px',
-	'paint-order': 'normal',
-	perspective: 'none',
-	'perspective-origin': '0px 0px',
-	'pointer-events': 'auto',
-	position: 'static',
-	r: '0px',
-	resize: 'none',
-	right: 'auto',
-	'row-gap': 'normal',
-	'ruby-position': 'over',
-	rx: 'auto',
-	ry: 'auto',
-	'scroll-behavior': 'auto',
-	'scroll-margin-block-end': '0px',
-	'scroll-margin-block-start': '0px',
-	'scroll-margin-inline-end': '0px',
-	'scroll-margin-inline-start': '0px',
-	'scroll-padding-block-end': 'auto',
-	'scroll-padding-block-start': 'auto',
-	'scroll-padding-inline-end': 'auto',
-	'scroll-padding-inline-start': 'auto',
-	'scrollbar-gutter': 'auto',
-	'shape-image-threshold': '0',
-	'shape-margin': '0px',
-	'shape-outside': 'none',
-	'shape-rendering': 'auto',
-	speak: 'normal',
-	'stop-color': 'rgb(0, 0, 0)',
-	'stop-opacity': '1',
-	stroke: 'none',
-	'stroke-dasharray': 'none',
-	'stroke-dashoffset': '0px',
-	'stroke-linecap': 'butt',
-	'stroke-linejoin': 'miter',
-	'stroke-miterlimit': '4',
-	'stroke-opacity': '1',
-	'stroke-width': '1px',
-	'tab-size': '8',
-	'table-layout': 'auto',
-	'text-align': 'start',
-	'text-align-last': 'auto',
-	'text-anchor': 'start',
-	'text-decoration': 'none solid rgb(0, 0, 0)',
-	'text-decoration-color': 'rgb(0, 0, 0)',
-	'text-decoration-line': 'none',
-	'text-decoration-skip-ink': 'auto',
-	'text-decoration-style': 'solid',
-	'text-emphasis-color': 'rgb(0, 0, 0)',
-	'text-emphasis-position': 'over',
-	'text-emphasis-style': 'none',
-	'text-indent': '0px',
-	'text-overflow': 'clip',
-	'text-rendering': 'auto',
-	'text-shadow': 'none',
-	'text-size-adjust': 'auto',
-	'text-transform': 'none',
-	'text-underline-position': 'auto',
-	top: 'auto',
-	'touch-action': 'auto',
-	transform: 'none',
-	'transform-origin': '0px 0px',
-	'transform-style': 'flat',
-	'transition-delay': '0s',
-	'transition-duration': '0s',
-	'transition-property': 'all',
-	'transition-timing-function': 'ease',
-	'unicode-bidi': 'normal',
-	'user-select': 'auto',
-	'vector-effect': 'none',
-	'vertical-align': 'baseline',
-	visibility: 'visible',
-	'white-space': 'normal',
-	widows: '2',
-	width: 'auto',
-	'will-change': 'auto',
-	'word-break': 'normal',
-	'word-spacing': '0px',
-	'writing-mode': 'horizontal-tb',
-	x: '0px',
-	y: '0px',
-	'z-index': 'auto',
-	zoom: '1'
-};