@@ -11,6 +11,8 @@ URL: https://drafts.csswg.org/css-gaps-1/
1111TR : https://www.w3.org/TR/css-gaps-1/
1212Editor : Kevin Babbitt, Microsoft, https://github.com/kbabbitt, w3cid 124689
1313Abstract : This module introduces several properties to add row and column gap decorations to container layout types such as grid and flex.
14+ WPT Path Prefix : css/css-gaps/
15+ WPT Display : open
1416</pre>
1517<pre class='anchors'>
1618urlPrefix: https://drafts.csswg.org/css-grid-3/; type: dfn; spec: CSS-GRID-3; text: masonry container
@@ -86,6 +88,10 @@ Gap decorations</h2>
8688 </figure>
8789 </div>
8890
91+ <wpt>
92+ serialization/gap-decorations-properties.html
93+ </wpt>
94+
8995<h3 id="layout-painting">
9096Layout and painting</h3>
9197
@@ -177,6 +183,25 @@ Layout and painting</h3>
177183 <a>Gap decorations</a> are painted relative to pairs of <a>gap intersection points</a> ,
178184 in the center of the corresponding gap and parallel to its edges.
179185
186+ <wpt>
187+ flex/flex-gap-decorations-001.html
188+ flex/flex-gap-decorations-006.html
189+ flex/flex-gap-decorations-007.html
190+ flex/flex-gap-decorations-008.html
191+ flex/flex-gap-decorations-015.html
192+ flex/flex-gap-decorations-016.html
193+ grid/grid-gap-decorations-001.html
194+ multicol/multicol-gap-decorations-001.html
195+ multicol/multicol-gap-decorations-002.html
196+ multicol/multicol-gap-decorations-003.html
197+ multicol/multicol-gap-decorations-005.html
198+ multicol/multicol-gap-decorations-006.html
199+ multicol/multicol-gap-decorations-007.html
200+ multicol/multicol-gap-decorations-013.html
201+ multicol/multicol-gap-decorations-015.html
202+ multicol/multicol-gap-decorations-016.html
203+ </wpt>
204+
180205 If the positions of one or more gaps coincide exactly due to being [=collapsed gutter|collapsed=] ,
181206 at most one decoration will be drawn for that set of gaps.
182207 The decoration that is drawn is selected according to the
@@ -224,6 +249,19 @@ Breaking gap decorations into segments: The 'column-rule-break', 'row-rule-break
224249
225250 Sets the 'column-rule-break' and 'row-rule-break' properties to the same value.
226251
252+ <wpt>
253+ flex/flex-gap-decorations-009.html
254+ flex/flex-gap-decorations-010.html
255+ grid/grid-gap-decorations-006.html
256+ grid/grid-gap-decorations-007.html
257+ grid/grid-gap-decorations-008.html
258+ grid/grid-gap-decorations-009.html
259+ multicol/multicol-gap-decorations-014.html
260+ parsing/rule-break-computed.html
261+ parsing/rule-break-invalid.html
262+ parsing/rule-break-valid.html
263+ </wpt>
264+
227265<h4 id="pairing">
228266Pairing gap intersection points into segments</h4>
229267
@@ -585,6 +623,26 @@ Adjusting gap decoration endpoints: The 'column-rule-outset', 'row-rule-outset',
585623 For details on how the offset is applied,
586624 see the steps to <a>determine pairs of gap decoration endpoints</a> .
587625
626+ <wpt>
627+ flex/flex-gap-decorations-011.html
628+ flex/flex-gap-decorations-013.html
629+ flex/flex-gap-decorations-014.html
630+ grid/grid-gap-decorations-010.html
631+ grid/grid-gap-decorations-011.html
632+ grid/grid-gap-decorations-012.html
633+ grid/grid-gap-decorations-013.html
634+ grid/grid-gap-decorations-014.html
635+ grid/grid-gap-decorations-015.html
636+ multicol/multicol-gap-decorations-008.html
637+ multicol/multicol-gap-decorations-009.html
638+ multicol/multicol-gap-decorations-010.html
639+ multicol/multicol-gap-decorations-011.html
640+ multicol/multicol-gap-decorations-012.html
641+ parsing/rule-outset-computed.html
642+ parsing/rule-outset-invalid.html
643+ parsing/rule-outset-valid.html
644+ </wpt>
645+
588646<h3 id="paint-order">
589647Gap decoration paint order: The 'rule-paint-order' property</h3>
590648
@@ -631,6 +689,14 @@ Gap decoration paint order: The 'rule-paint-order' property</h3>
631689 </figure>
632690 </div>
633691
692+ <wpt>
693+ flex/flex-gap-decorations-012.html
694+ grid/grid-gap-decorations-023.html
695+ parsing/rule-paint-order-computed.html
696+ parsing/rule-paint-order-invalid.html
697+ parsing/rule-paint-order-valid.html
698+ </wpt>
699+
634700<h2 id="color-style-width">
635701Color, style, and width</h2>
636702
@@ -670,6 +736,18 @@ Gap decoration color: The 'column-rule-color' and 'row-rule-color' properties</h
670736 </dd>
671737 </dl>
672738
739+ <wpt>
740+ grid/grid-gap-decorations-022.html
741+ grid/grid-gap-decorations-024.html
742+ grid/grid-gap-decorations-025.html
743+ grid/grid-gap-decorations-026.html
744+ grid/grid-gap-decorations-027.html
745+ grid/grid-gap-decorations-028.html
746+ parsing/gap-decorations-color-computed.html
747+ parsing/gap-decorations-color-invalid.html
748+ parsing/gap-decorations-color-valid.html
749+ </wpt>
750+
673751<h3 id="column-row-rule-style">
674752Gap decoration style: The 'column-rule-style' and 'row-rule-style' properties</h3>
675753
@@ -699,6 +777,26 @@ Gap decoration style: The 'column-rule-style' and 'row-rule-style' properties</h
699777 These properties set the styles of <a>gap decorations</a> .
700778 The <<line-style>> values are interpreted as in the <a href="https://www.w3.org/TR/CSS2/tables.html#collapsing-borders">collapsing border model</a> .
701779
780+ <wpt>
781+ flex/flex-gap-decorations-002.html
782+ flex/flex-gap-decorations-003.html
783+ flex/flex-gap-decorations-004.html
784+ flex/flex-gap-decorations-005.html
785+ flex/flex-gap-decorations-017.html
786+ flex/flex-gap-decorations-018.html
787+ grid/grid-gap-decorations-002.html
788+ grid/grid-gap-decorations-003.html
789+ grid/grid-gap-decorations-004.html
790+ grid/grid-gap-decorations-005.html
791+ grid/grid-gap-decorations-016.html
792+ grid/grid-gap-decorations-017.html
793+ grid/grid-gap-decorations-020.html
794+ grid/grid-gap-decorations-021.html
795+ parsing/gap-decorations-style-computed.html
796+ parsing/gap-decorations-style-invalid.html
797+ parsing/gap-decorations-style-valid.html
798+ </wpt>
799+
702800<h3 id="column-row-rule-width">
703801Gap decoration width: The 'column-rule-width' and 'row-rule-width' properties</h3>
704802
@@ -735,6 +833,15 @@ Gap decoration width: The 'column-rule-width' and 'row-rule-width' properties</h
735833 Issue: Should the "force to 0" behavior apply when lists of values are involved?
736834 If so, how should this be handled with unaligned lists?
737835
836+ <wpt>
837+ grid/grid-gap-decorations-018.html
838+ grid/grid-gap-decorations-019.html
839+ multicol/multicol-gap-decorations-004.html
840+ parsing/gap-decorations-width-computed.html
841+ parsing/gap-decorations-width-invalid.html
842+ parsing/gap-decorations-width-valid.html
843+ </wpt>
844+
738845<h3 id="lists-repeat">
739846Lists of values and the ''repeat-line-color/repeat()'' notation</h3>
740847
@@ -934,6 +1041,11 @@ Bi-directional gap decoration shorthands: The 'rule-color', 'rule-style', 'rule-
9341041
9351042 These shorthands set the corresponding column and row properties to the same values.
9361043
1044+ <wpt>
1045+ flex/flex-gap-decorations-019.html
1046+ parsing/gap-decorations-bidirectional-shorthands.html
1047+ </wpt>
1048+
9371049<h2 id="privacy">
9381050Privacy Considerations</h2>
9391051
@@ -953,4 +1065,5 @@ Changes since the <a href="https://www.w3.org/TR/2025/WD-css-gaps-1-20250417/">1
9531065 <ul class="non-normative">
9541066 <li> Specified the behavior when gaps are coincident due to track collapsing.
9551067 (<a href="https://github.com/w3c/csswg-drafts/issues/11814">Issue 11814</a> )
1068+ <li> Added links to WPT suite.
9561069 </ul>
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