diff --git a/css/css-sizing/WEB_FEATURES.yml b/css/css-sizing/WEB_FEATURES.yml
index 3595a2fb3a2509..21931ffcc374b4 100644
--- a/css/css-sizing/WEB_FEATURES.yml
+++ b/css/css-sizing/WEB_FEATURES.yml
@@ -1,66 +1,66 @@
 features:
 - name: min-max-content
   files:
-  - 'block-size-with-min-or-max-content-*'
-  - 'border-box-and-max-content-*'
-  - 'div-max-content-*'
-  - 'div-min-content-*'
-  - 'hori-block-size-small-or-larger-than-container-with-min-or-max-content-*'
-  - 'image-min-max-content-intrinsic-size-change-*'
-  - intrinsic-fixed-width-with-max-content-height.html
-  - intrinsic-fixed-width-with-min-content-height.html
-  - 'keyword-sizes-on-*'
-  - 'max-content-input-*'
-  - min-content-le-max-content.tentative.html
-  - min-content-min-width-000.html
-  - min-max-content-orthogonal-flow-crash-001.html
-  - replaced-max-height-min-content.html
-  - replaced-max-width-min-content.html
-  - replaced-min-height-min-content.html
-  - replaced-min-width-min-content.html
-  - shrink-to-fit-sizing-max-width-min-content.html
-  - svg-no-ar-max-height-min-content.html
-  - svg-no-ar-min-height-min-content.html
-  - 'vert-block-size-small-or-larger-than-container-with-min-or-max-content-*'
+  - ./block-size-with-min-or-max-content-*
+  - ./border-box-and-max-content-*
+  - ./div-max-content-*
+  - ./div-min-content-*
+  - ./hori-block-size-small-or-larger-than-container-with-min-or-max-content-*
+  - ./image-min-max-content-intrinsic-size-change-*
+  - ./intrinsic-fixed-width-with-max-content-height.html
+  - ./intrinsic-fixed-width-with-min-content-height.html
+  - ./keyword-sizes-on-*
+  - ./max-content-input-*
+  - ./min-content-le-max-content.tentative.html
+  - ./min-content-min-width-000.html
+  - ./min-max-content-orthogonal-flow-crash-001.html
+  - ./replaced-max-height-min-content.html
+  - ./replaced-max-width-min-content.html
+  - ./replaced-min-height-min-content.html
+  - ./replaced-min-width-min-content.html
+  - ./shrink-to-fit-sizing-max-width-min-content.html
+  - ./svg-no-ar-max-height-min-content.html
+  - ./svg-no-ar-min-height-min-content.html
+  - ./vert-block-size-small-or-larger-than-container-with-min-or-max-content-*
 - name: min-max-width-height
   files:
-  - button-min-width.html
-  - image-max-width-and-height-behaves-as-auto.html
-  - min-width-max-width-precedence.html
-  - table-percentage-max-width-beside-float.html
-  - table-percentage-min-width-below-float.html
-  - table-percentage-min-width-beside-float.html
+  - ./button-min-width.html
+  - ./image-max-width-and-height-behaves-as-auto.html
+  - ./min-width-max-width-precedence.html
+  - ./table-percentage-max-width-beside-float.html
+  - ./table-percentage-min-width-below-float.html
+  - ./table-percentage-min-width-beside-float.html
 - name: box-sizing
   files:
-  - border-box-and-max-content-*
-  - border-box-and-max-content-002.html
-  - border-box-and-max-content-003.html
-  - box-sizing-*
-  - dynamic-change-inline-size-001.html
-  - inheritance-001.html
-  - intrinsic-percent-replaced-009.html
-  - intrinsic-percent-replaced-012.html
-  - intrinsic-percent-replaced-013.html
-  - intrinsic-percent-replaced-014.html
-  - intrinsic-percent-replaced-019.html
-  - intrinsic-percent-replaced-020.html
-  - intrinsic-ratio-replaced-box-sizing.html
-  - table-child-percentage-height-with-border-box.html
-  - thin-element-render.html
+  - ./border-box-and-max-content-*
+  - ./border-box-and-max-content-002.html
+  - ./border-box-and-max-content-003.html
+  - ./box-sizing-*
+  - ./dynamic-change-inline-size-001.html
+  - ./inheritance-001.html
+  - ./intrinsic-percent-replaced-009.html
+  - ./intrinsic-percent-replaced-012.html
+  - ./intrinsic-percent-replaced-013.html
+  - ./intrinsic-percent-replaced-014.html
+  - ./intrinsic-percent-replaced-019.html
+  - ./intrinsic-percent-replaced-020.html
+  - ./intrinsic-ratio-replaced-box-sizing.html
+  - ./table-child-percentage-height-with-border-box.html
+  - ./thin-element-render.html
 - name: fit-content
   files:
-  - 'div-fit-content-*'
-  - 'fit-content-*'
-  - '!fit-content-length-percentage-*'
-  - 'margin-collapse-with-indefinite-block-size-004.html'
-  - 'percentage-min-width.html'
+  - ./div-fit-content-*
+  - ./fit-content-*
+  - ./margin-collapse-with-indefinite-block-size-004.html
+  - ./percentage-min-width.html
+  - "!#fit-content-function"
 - name: fit-content-function
   files:
-  - 'border-box-and-max-content-003.html'
-  - 'fit-content-length-percentage-*'
+  - ./border-box-and-max-content-003.html
+  - ./fit-content-length-percentage-*
 - name: width-height
   files:
-  - percentage-height-replaced-content-in-auto-cb.html
+  - ./percentage-height-replaced-content-in-auto-cb.html
 - name: svg
   files:
-  - svg-intrinsic-size-*
+  - ./svg-intrinsic-size-*
diff --git a/css/css-sizing/animation/WEB_FEATURES.yml b/css/css-sizing/animation/WEB_FEATURES.yml
index d9f886666aa932..de9c0db626d38b 100644
--- a/css/css-sizing/animation/WEB_FEATURES.yml
+++ b/css/css-sizing/animation/WEB_FEATURES.yml
@@ -1,4 +1,4 @@
 features:
 - name: box-sizing
   files:
-  - box-sizing-no-interpolation.html
+  - ./box-sizing-no-interpolation.html
diff --git a/css/css-sizing/aspect-ratio/WEB_FEATURES.yml b/css/css-sizing/aspect-ratio/WEB_FEATURES.yml
index b518bd2bacb710..fda83e8f8bf1b2 100644
--- a/css/css-sizing/aspect-ratio/WEB_FEATURES.yml
+++ b/css/css-sizing/aspect-ratio/WEB_FEATURES.yml
@@ -1,62 +1,33 @@
 features:
 - name: aspect-ratio
   files:
-  #  The following patterns are intended to match every file that isn't matched
-  #  by `box-sizing` below.
-  - "*"
-  - "!abspos-010.html"
-  - "!abspos-011.html"
-  - "!block-aspect-ratio-004.html"
-  - "!block-aspect-ratio-006.html"
-  - "!block-aspect-ratio-026.html"
-  - "!block-aspect-ratio-027.html"
-  - "!block-aspect-ratio-035.html"
-  - "!block-aspect-ratio-050.html"
-  - "!box-sizing-dimensions.html"
-  - "!box-sizing-squashed.html"
-  - "!flex-aspect-ratio-025.html"
-  - "!flex-aspect-ratio-026.html"
-  - "!flex-aspect-ratio-031.html"
-  - "!grid-aspect-ratio-015.html"
-  - "!intrinsic-size-012.html"
-  - "!intrinsic-size-013.html"
-  - "!replaced-element-013.html"
-  - "!replaced-element-014.html"
-  - "!replaced-element-031.html"
-  - "!replaced-element-032.html"
-  - "!replaced-element-033.html"
-  - "!replaced-element-034.html"
-  - "!replaced-element-037.html"
-  - "!replaced-element-042.html"
-  - "!replaced-element-045.html"
-  - "!replaced-element-046.html"
+  - ./*
+  - "!#box-sizing"
 - name: box-sizing
   files:
-  # When modifying this classifier, please make corresponding changes to the
-  # classifier for the `aspect-ration` feature above.
-  - abspos-010.html
-  - abspos-011.html
-  - block-aspect-ratio-004.html
-  - block-aspect-ratio-006.html
-  - block-aspect-ratio-026.html
-  - block-aspect-ratio-027.html
-  - block-aspect-ratio-035.html
-  - block-aspect-ratio-050.html
-  - box-sizing-dimensions.html
-  - box-sizing-squashed.html
-  - flex-aspect-ratio-025.html
-  - flex-aspect-ratio-026.html
-  - flex-aspect-ratio-031.html
-  - grid-aspect-ratio-015.html
-  - intrinsic-size-012.html
-  - intrinsic-size-013.html
-  - replaced-element-013.html
-  - replaced-element-014.html
-  - replaced-element-031.html
-  - replaced-element-032.html
-  - replaced-element-033.html
-  - replaced-element-034.html
-  - replaced-element-037.html
-  - replaced-element-042.html
-  - replaced-element-045.html
-  - replaced-element-046.html
+  - ./abspos-010.html
+  - ./abspos-011.html
+  - ./block-aspect-ratio-004.html
+  - ./block-aspect-ratio-006.html
+  - ./block-aspect-ratio-026.html
+  - ./block-aspect-ratio-027.html
+  - ./block-aspect-ratio-035.html
+  - ./block-aspect-ratio-050.html
+  - ./box-sizing-dimensions.html
+  - ./box-sizing-squashed.html
+  - ./flex-aspect-ratio-025.html
+  - ./flex-aspect-ratio-026.html
+  - ./flex-aspect-ratio-031.html
+  - ./grid-aspect-ratio-015.html
+  - ./intrinsic-size-012.html
+  - ./intrinsic-size-013.html
+  - ./replaced-element-013.html
+  - ./replaced-element-014.html
+  - ./replaced-element-031.html
+  - ./replaced-element-032.html
+  - ./replaced-element-033.html
+  - ./replaced-element-034.html
+  - ./replaced-element-037.html
+  - ./replaced-element-042.html
+  - ./replaced-element-045.html
+  - ./replaced-element-046.html
diff --git a/css/css-sizing/parsing/WEB_FEATURES.yml b/css/css-sizing/parsing/WEB_FEATURES.yml
index 170830fc5ad6a8..cb823b4ec90be8 100644
--- a/css/css-sizing/parsing/WEB_FEATURES.yml
+++ b/css/css-sizing/parsing/WEB_FEATURES.yml
@@ -1,8 +1,8 @@
 features:
 - name: box-sizing
   files:
-  - box-sizing-*
+  - ./box-sizing-*
 - name: width-height
   files:
-  - width-*
-  - height-*
+  - ./width-*
+  - ./height-*