diff --git a/testsuite/css/parser/animation-crash-3.12.ref.css b/testsuite/css/parser/animation-crash-3.12.ref.css
index a0534f7fb8..e69de29bb2 100644
--- a/testsuite/css/parser/animation-crash-3.12.ref.css
+++ b/testsuite/css/parser/animation-crash-3.12.ref.css
@@ -1,2 +0,0 @@
-* {
-}
diff --git a/testsuite/css/parser/background-position-errors.ref.css b/testsuite/css/parser/background-position-errors.ref.css
index f1d0d7038f..e69de29bb2 100644
--- a/testsuite/css/parser/background-position-errors.ref.css
+++ b/testsuite/css/parser/background-position-errors.ref.css
@@ -1,2 +0,0 @@
-a {
-}
diff --git a/testsuite/css/parser/background-position.ref.css b/testsuite/css/parser/background-position.ref.css
index 8c7afc18f9..ffa28d3251 100644
--- a/testsuite/css/parser/background-position.ref.css
+++ b/testsuite/css/parser/background-position.ref.css
@@ -2,9 +2,6 @@ a {
   background-position: top;
 }
 
-b {
-}
-
 c {
   background-position: left top;
 }
@@ -13,16 +10,10 @@ d {
   background-position: right top;
 }
 
-e {
-}
-
 f {
   background-position: top;
 }
 
-g {
-}
-
 h {
   background-position: left;
 }
@@ -31,12 +22,6 @@ i {
   background-position: left top;
 }
 
-j {
-}
-
-k {
-}
-
 l {
   background-position: left bottom;
 }
@@ -57,12 +42,6 @@ p {
   background-position: right top;
 }
 
-q {
-}
-
-r {
-}
-
 s {
   background-position: right bottom;
 }
@@ -79,9 +58,6 @@ v {
   background-position: bottom;
 }
 
-w {
-}
-
 x {
   background-position: left bottom;
 }
@@ -90,16 +66,10 @@ y {
   background-position: right bottom;
 }
 
-z {
-}
-
 ab {
   background-position: bottom;
 }
 
-bb {
-}
-
 cb {
   background-position: center;
 }
@@ -136,12 +106,6 @@ kb {
   background-position: 25% top;
 }
 
-lb {
-}
-
-mb {
-}
-
 nb {
   background-position: 25% bottom;
 }
diff --git a/testsuite/css/parser/border-infloop-3.12.ref.css b/testsuite/css/parser/border-infloop-3.12.ref.css
index a0534f7fb8..e69de29bb2 100644
--- a/testsuite/css/parser/border-infloop-3.12.ref.css
+++ b/testsuite/css/parser/border-infloop-3.12.ref.css
@@ -1,2 +0,0 @@
-* {
-}
diff --git a/testsuite/css/parser/border-radius-shorthand.ref.css b/testsuite/css/parser/border-radius-shorthand.ref.css
index 2c45670b92..51a211d408 100644
--- a/testsuite/css/parser/border-radius-shorthand.ref.css
+++ b/testsuite/css/parser/border-radius-shorthand.ref.css
@@ -102,42 +102,3 @@ o {
   border-top-left-radius: 1px 0;
   border-top-right-radius: 1px 0;
 }
-
-ea {
-}
-
-eb {
-}
-
-ec {
-}
-
-ed {
-}
-
-ee {
-}
-
-ef {
-}
-
-eg {
-}
-
-eh {
-}
-
-ei {
-}
-
-ej {
-}
-
-ek {
-}
-
-el {
-}
-
-em {
-}
diff --git a/testsuite/css/parser/border.ref.css b/testsuite/css/parser/border.ref.css
index 2f2ab01032..a8c60925cb 100644
--- a/testsuite/css/parser/border.ref.css
+++ b/testsuite/css/parser/border.ref.css
@@ -22,27 +22,6 @@ f {
   border-image-width: 1px 2px 3 4px;
 }
 
-g {
-}
-
-h {
-}
-
-i {
-}
-
-j {
-}
-
-k {
-}
-
-l {
-}
-
-m {
-}
-
 n {
   border-image-width: 1 2;
 }
diff --git a/testsuite/css/parser/calc-errors.ref.css b/testsuite/css/parser/calc-errors.ref.css
index f7df1f634b..e69de29bb2 100644
--- a/testsuite/css/parser/calc-errors.ref.css
+++ b/testsuite/css/parser/calc-errors.ref.css
@@ -1,56 +0,0 @@
-b {
-}
-
-c {
-}
-
-d {
-}
-
-e {
-}
-
-f {
-}
-
-g {
-}
-
-h {
-}
-
-i {
-}
-
-j {
-}
-
-k {
-}
-
-l {
-}
-
-m {
-}
-
-n {
-}
-
-o {
-}
-
-p {
-}
-
-q {
-}
-
-r {
-}
-
-s {
-}
-
-t {
-}
diff --git a/testsuite/css/parser/colors-errors.ref.css b/testsuite/css/parser/colors-errors.ref.css
index cfb1eff431..e69de29bb2 100644
--- a/testsuite/css/parser/colors-errors.ref.css
+++ b/testsuite/css/parser/colors-errors.ref.css
@@ -1,23 +0,0 @@
-a {
-}
-
-b {
-}
-
-c {
-}
-
-d {
-}
-
-e {
-}
-
-f {
-}
-
-g {
-}
-
-h {
-}
diff --git a/testsuite/css/parser/dash-backslash-newline-is-delim.ref.css b/testsuite/css/parser/dash-backslash-newline-is-delim.ref.css
index f1d0d7038f..e69de29bb2 100644
--- a/testsuite/css/parser/dash-backslash-newline-is-delim.ref.css
+++ b/testsuite/css/parser/dash-backslash-newline-is-delim.ref.css
@@ -1,2 +0,0 @@
-a {
-}
diff --git a/testsuite/css/parser/dash-eof-is-delim.ref.css b/testsuite/css/parser/dash-eof-is-delim.ref.css
index f1d0d7038f..e69de29bb2 100644
--- a/testsuite/css/parser/dash-eof-is-delim.ref.css
+++ b/testsuite/css/parser/dash-eof-is-delim.ref.css
@@ -1,2 +0,0 @@
-a {
-}
diff --git a/testsuite/css/parser/declarations-invalid-01.ref.css b/testsuite/css/parser/declarations-invalid-01.ref.css
index a0534f7fb8..e69de29bb2 100644
--- a/testsuite/css/parser/declarations-invalid-01.ref.css
+++ b/testsuite/css/parser/declarations-invalid-01.ref.css
@@ -1,2 +0,0 @@
-* {
-}
diff --git a/testsuite/css/parser/declarations-invalid-08.ref.css b/testsuite/css/parser/declarations-invalid-08.ref.css
index a0534f7fb8..e69de29bb2 100644
--- a/testsuite/css/parser/declarations-invalid-08.ref.css
+++ b/testsuite/css/parser/declarations-invalid-08.ref.css
@@ -1,2 +0,0 @@
-* {
-}
diff --git a/testsuite/css/parser/declarations-valid-01.ref.css b/testsuite/css/parser/declarations-valid-01.ref.css
index a0534f7fb8..e69de29bb2 100644
--- a/testsuite/css/parser/declarations-valid-01.ref.css
+++ b/testsuite/css/parser/declarations-valid-01.ref.css
@@ -1,2 +0,0 @@
-* {
-}
diff --git a/testsuite/css/parser/declarations-valid-06.ref.css b/testsuite/css/parser/declarations-valid-06.ref.css
index a0534f7fb8..e69de29bb2 100644
--- a/testsuite/css/parser/declarations-valid-06.ref.css
+++ b/testsuite/css/parser/declarations-valid-06.ref.css
@@ -1,2 +0,0 @@
-* {
-}
diff --git a/testsuite/css/parser/declarations-valid-07.ref.css b/testsuite/css/parser/declarations-valid-07.ref.css
index a0534f7fb8..e69de29bb2 100644
--- a/testsuite/css/parser/declarations-valid-07.ref.css
+++ b/testsuite/css/parser/declarations-valid-07.ref.css
@@ -1,2 +0,0 @@
-* {
-}
diff --git a/testsuite/css/parser/declarations.ref.css b/testsuite/css/parser/declarations.ref.css
index 9efda68acd..19fb63f87b 100644
--- a/testsuite/css/parser/declarations.ref.css
+++ b/testsuite/css/parser/declarations.ref.css
@@ -1,12 +1,3 @@
-a {
-}
-
-b {
-}
-
-c {
-}
-
 d {
   margin-top: 42px;
 }
@@ -24,43 +15,10 @@ g {
   margin-top: 42px;
 }
 
-h {
-}
-
-i {
-}
-
-j {
-}
-
-k {
-}
-
-l {
-}
-
-m {
-}
-
-n {
-}
-
-h {
-}
-
 i {
   padding-top: 42px;
 }
 
-j {
-}
-
-k {
-}
-
-l {
-}
-
 m {
   padding-top: 42px;
 }
diff --git a/testsuite/css/parser/does-not-exist.ref.css b/testsuite/css/parser/does-not-exist.ref.css
index 427827ca89..e69de29bb2 100644
--- a/testsuite/css/parser/does-not-exist.ref.css
+++ b/testsuite/css/parser/does-not-exist.ref.css
@@ -1,2 +0,0 @@
-foo {
-}
diff --git a/testsuite/css/parser/freed-string-in-error-messages.ref.css b/testsuite/css/parser/freed-string-in-error-messages.ref.css
index f1d0d7038f..e69de29bb2 100644
--- a/testsuite/css/parser/freed-string-in-error-messages.ref.css
+++ b/testsuite/css/parser/freed-string-in-error-messages.ref.css
@@ -1,2 +0,0 @@
-a {
-}
diff --git a/testsuite/css/parser/integer.ref.css b/testsuite/css/parser/integer.ref.css
index dad66c4857..6d217356e8 100644
--- a/testsuite/css/parser/integer.ref.css
+++ b/testsuite/css/parser/integer.ref.css
@@ -22,28 +22,10 @@ f {
   opacity: 1;
 }
 
-g {
-}
-
-h {
-}
-
 i {
   opacity: 377;
 }
 
-j {
-}
-
-k {
-}
-
 l {
   opacity: 3;
 }
-
-m {
-}
-
-n {
-}
diff --git a/testsuite/css/parser/newline-after-backslash-original.ref.css b/testsuite/css/parser/newline-after-backslash-original.ref.css
index 1f34fb3203..54a145c2c9 100644
--- a/testsuite/css/parser/newline-after-backslash-original.ref.css
+++ b/testsuite/css/parser/newline-after-backslash-original.ref.css
@@ -1,6 +1,3 @@
-popover {
-}
-
 popover arrow {
   background-color: rgb(0,255,0);
   border-bottom-color: rgb(0,128,0);
diff --git a/testsuite/css/parser/property-name-errors.ref.css b/testsuite/css/parser/property-name-errors.ref.css
index a0534f7fb8..e69de29bb2 100644
--- a/testsuite/css/parser/property-name-errors.ref.css
+++ b/testsuite/css/parser/property-name-errors.ref.css
@@ -1,2 +0,0 @@
-* {
-}
diff --git a/testsuite/css/parser/radial-background-position-error.ref.css b/testsuite/css/parser/radial-background-position-error.ref.css
index f1d0d7038f..e69de29bb2 100644
--- a/testsuite/css/parser/radial-background-position-error.ref.css
+++ b/testsuite/css/parser/radial-background-position-error.ref.css
@@ -1,2 +0,0 @@
-a {
-}
diff --git a/testsuite/css/parser/radial-positions.ref.css b/testsuite/css/parser/radial-positions.ref.css
index d1935335fe..e69de29bb2 100644
--- a/testsuite/css/parser/radial-positions.ref.css
+++ b/testsuite/css/parser/radial-positions.ref.css
@@ -1,8 +0,0 @@
-a {
-}
-
-b {
-}
-
-c {
-}
diff --git a/testsuite/css/parser/text-shadow-invalid-but-worked-in-3.12.ref.css b/testsuite/css/parser/text-shadow-invalid-but-worked-in-3.12.ref.css
index 6a96cfdc77..e69de29bb2 100644
--- a/testsuite/css/parser/text-shadow-invalid-but-worked-in-3.12.ref.css
+++ b/testsuite/css/parser/text-shadow-invalid-but-worked-in-3.12.ref.css
@@ -1,5 +0,0 @@
-a {
-}
-
-b {
-}