diff --git a/assets/sass/libs/_vendor.scss b/assets/sass/libs/_vendor.scss
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+// vendor.scss v1.0 | @ajlkn | MIT licensed */
+
+// Vars.
+
+	/// Vendor prefixes.
+	/// @var {list}
+	$vendor-prefixes: (
+		'-moz-',
+		'-webkit-',
+		'-ms-',
+		''
+	);
+
+	/// Properties that should be vendorized.
+	/// Data via caniuse.com, github.com/postcss/autoprefixer, and developer.mozilla.org
+	/// @var {list}
+	$vendor-properties: (
+
+		// Animation.
+			'animation',
+			'animation-delay',
+			'animation-direction',
+			'animation-duration',
+			'animation-fill-mode',
+			'animation-iteration-count',
+			'animation-name',
+			'animation-play-state',
+			'animation-timing-function',
+
+		// Appearance.
+			'appearance',
+
+		// Backdrop filter.
+			'backdrop-filter',
+
+		// Background image options.
+			'background-clip',
+			'background-origin',
+			'background-size',
+
+		// Box sizing.
+			'box-sizing',
+
+		// Clip path.
+			'clip-path',
+
+		// Filter effects.
+			'filter',
+
+		// Flexbox.
+			'align-content',
+			'align-items',
+			'align-self',
+			'flex',
+			'flex-basis',
+			'flex-direction',
+			'flex-flow',
+			'flex-grow',
+			'flex-shrink',
+			'flex-wrap',
+			'justify-content',
+			'order',
+
+		// Font feature.
+			'font-feature-settings',
+			'font-language-override',
+			'font-variant-ligatures',
+
+		// Font kerning.
+			'font-kerning',
+
+		// Fragmented borders and backgrounds.
+			'box-decoration-break',
+
+		// Grid layout.
+			'grid-column',
+			'grid-column-align',
+			'grid-column-end',
+			'grid-column-start',
+			'grid-row',
+			'grid-row-align',
+			'grid-row-end',
+			'grid-row-start',
+			'grid-template-columns',
+			'grid-template-rows',
+
+		// Hyphens.
+			'hyphens',
+			'word-break',
+
+		// Masks.
+			'mask',
+			'mask-border',
+			'mask-border-outset',
+			'mask-border-repeat',
+			'mask-border-slice',
+			'mask-border-source',
+			'mask-border-width',
+			'mask-clip',
+			'mask-composite',
+			'mask-image',
+			'mask-origin',
+			'mask-position',
+			'mask-repeat',
+			'mask-size',
+
+		// Multicolumn.
+			'break-after',
+			'break-before',
+			'break-inside',
+			'column-count',
+			'column-fill',
+			'column-gap',
+			'column-rule',
+			'column-rule-color',
+			'column-rule-style',
+			'column-rule-width',
+			'column-span',
+			'column-width',
+			'columns',
+
+		// Object fit.
+			'object-fit',
+			'object-position',
+
+		// Regions.
+			'flow-from',
+			'flow-into',
+			'region-fragment',
+
+		// Scroll snap points.
+			'scroll-snap-coordinate',
+			'scroll-snap-destination',
+			'scroll-snap-points-x',
+			'scroll-snap-points-y',
+			'scroll-snap-type',
+
+		// Shapes.
+			'shape-image-threshold',
+			'shape-margin',
+			'shape-outside',
+
+		// Tab size.
+			'tab-size',
+
+		// Text align last.
+			'text-align-last',
+
+		// Text decoration.
+			'text-decoration-color',
+			'text-decoration-line',
+			'text-decoration-skip',
+			'text-decoration-style',
+
+		// Text emphasis.
+			'text-emphasis',
+			'text-emphasis-color',
+			'text-emphasis-position',
+			'text-emphasis-style',
+
+		// Text size adjust.
+			'text-size-adjust',
+
+		// Text spacing.
+			'text-spacing',
+
+		// Transform.
+			'transform',
+			'transform-origin',
+
+		// Transform 3D.
+			'backface-visibility',
+			'perspective',
+			'perspective-origin',
+			'transform-style',
+
+		// Transition.
+			'transition',
+			'transition-delay',
+			'transition-duration',
+			'transition-property',
+			'transition-timing-function',
+
+		// Unicode bidi.
+			'unicode-bidi',
+
+		// User select.
+			'user-select',
+
+		// Writing mode.
+			'writing-mode',
+
+	);
+
+	/// Values that should be vendorized.
+	/// Data via caniuse.com, github.com/postcss/autoprefixer, and developer.mozilla.org
+	/// @var {list}
+	$vendor-values: (
+
+		// Cross fade.
+			'cross-fade',
+
+		// Element function.
+			'element',
+
+		// Filter function.
+			'filter',
+
+		// Flexbox.
+			'flex',
+			'inline-flex',
+
+		// Grab cursors.
+			'grab',
+			'grabbing',
+
+		// Gradients.
+			'linear-gradient',
+			'repeating-linear-gradient',
+			'radial-gradient',
+			'repeating-radial-gradient',
+
+		// Grid layout.
+			'grid',
+			'inline-grid',
+
+		// Image set.
+			'image-set',
+
+		// Intrinsic width.
+			'max-content',
+			'min-content',
+			'fit-content',
+			'fill',
+			'fill-available',
+			'stretch',
+
+		// Sticky position.
+			'sticky',
+
+		// Transform.
+			'transform',
+
+		// Zoom cursors.
+			'zoom-in',
+			'zoom-out',
+
+	);
+
+// Functions.
+
+	/// Removes a specific item from a list.
+	/// @author Hugo Giraudel
+	/// @param {list} $list List.
+	/// @param {integer} $index Index.
+	/// @return {list} Updated list.
+	@function remove-nth($list, $index) {
+
+		$result: null;
+
+		@if type-of($index) != number {
+			@warn "$index: #{quote($index)} is not a number for `remove-nth`.";
+		}
+		@else if $index == 0 {
+			@warn "List index 0 must be a non-zero integer for `remove-nth`.";
+		}
+		@else if abs($index) > length($list) {
+			@warn "List index is #{$index} but list is only #{length($list)} item long for `remove-nth`.";
+		}
+		@else {
+
+			$result: ();
+			$index: if($index < 0, length($list) + $index + 1, $index);
+
+			@for $i from 1 through length($list) {
+
+				@if $i != $index {
+					$result: append($result, nth($list, $i));
+				}
+
+			}
+
+		}
+
+		@return $result;
+
+	}
+
+	/// Replaces a substring within another string.
+	/// @author Hugo Giraudel
+	/// @param {string} $string String.
+	/// @param {string} $search Substring.
+	/// @param {string} $replace Replacement.
+	/// @return {string} Updated string.
+	@function str-replace($string, $search, $replace: '') {
+
+		$index: str-index($string, $search);
+
+		@if $index {
+			@return str-slice($string, 1, $index - 1) + $replace + str-replace(str-slice($string, $index + str-length($search)), $search, $replace);
+		}
+
+		@return $string;
+
+	}
+
+	/// Replaces a substring within each string in a list.
+	/// @param {list} $strings List of strings.
+	/// @param {string} $search Substring.
+	/// @param {string} $replace Replacement.
+	/// @return {list} Updated list of strings.
+	@function str-replace-all($strings, $search, $replace: '') {
+
+		@each $string in $strings {
+			$strings: set-nth($strings, index($strings, $string), str-replace($string, $search, $replace));
+		}
+
+		@return $strings;
+
+	}
+
+// Mixins.
+
+	/// Wraps @content in vendorized keyframe blocks.
+	/// @param {string} $name Name.
+	@mixin keyframes($name) {
+
+		@-moz-keyframes #{$name} { @content; }
+		@-webkit-keyframes #{$name} { @content; }
+		@-ms-keyframes #{$name} { @content; }
+		@keyframes #{$name} { @content; }
+
+	}
+
+	/// Vendorizes a declaration's property and/or value(s).
+	/// @param {string} $property Property.
+	/// @param {mixed} $value String/list of value(s).
+	@mixin vendor($property, $value) {
+
+		// Determine if property should expand.
+			$expandProperty: index($vendor-properties, $property);
+
+		// Determine if value should expand (and if so, add '-prefix-' placeholder).
+			$expandValue: false;
+
+			@each $x in $value {
+				@each $y in $vendor-values {
+					@if $y == str-slice($x, 1, str-length($y)) {
+
+						$value: set-nth($value, index($value, $x), '-prefix-' + $x);
+						$expandValue: true;
+
+					}
+				}
+			}
+
+		// Expand property?
+			@if $expandProperty {
+			    @each $vendor in $vendor-prefixes {
+			        #{$vendor}#{$property}: #{str-replace-all($value, '-prefix-', $vendor)};
+			    }
+			}
+
+		// Expand just the value?
+			@elseif $expandValue {
+			    @each $vendor in $vendor-prefixes {
+			        #{$property}: #{str-replace-all($value, '-prefix-', $vendor)};
+			    }
+			}
+
+		// Neither? Treat them as a normal declaration.
+			@else {
+		        #{$property}: #{$value};
+			}
+
+	}
\ No newline at end of file