From 87531152e39482ac706b9713cf48e38dbf7409a5 Mon Sep 17 00:00:00 2001
From: Cong-Cong Pan <dacongsama@live.com>
Date: Tue, 8 Sep 2026 16:02:48 +0800
Subject: [PATCH] fix: minify zero-valued translate3d in a single pass

---
 src/lib.rs                  | 64 +++++++++++++++++++++++++++++++++++++
 src/properties/transform.rs |  2 +-
 2 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 6416b7bae..1236cac51 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13364,6 +13364,70 @@ mod tests {
     );
   }
 
+  #[test]
+  fn test_zero_translate3d() {
+    minify_test(
+      indoc! {"
+        .foo {
+          transform: translate3d(0, 0, 0);
+        }
+      "},
+      ".foo{transform:translate(0)}",
+    );
+    minify_test(
+      indoc! {"
+        .foo {
+          transform: translate3d(0px, -0%, 0em);
+        }
+      "},
+      ".foo{transform:translate(0)}",
+    );
+    minify_test(
+      indoc! {"
+        .foo {
+          transform: translate3d(0%, 0px, -0px);
+        }
+      "},
+      ".foo{transform:translate(0%)}",
+    );
+    minify_test(
+      indoc! {"
+        .foo {
+          transform: translate3d(calc(1px - 1px), 0, 0) rotate(30deg);
+        }
+      "},
+      ".foo{transform:translate(0)rotate(30deg)}",
+    );
+    minify_test(
+      indoc! {"
+        .foo {
+          -webkit-transform: translate3d(0, 0, 0);
+        }
+      "},
+      ".foo{-webkit-transform:translate(0)}",
+    );
+    minify_test(
+      indoc! {"
+        .foo {
+          transform: translate3d(0, 0, var(--z));
+        }
+      "},
+      ".foo{transform:translate3d(0, 0, var(--z))}",
+    );
+    test(
+      indoc! {"
+        .foo {
+          transform: translate3d(0, 0, 0);
+        }
+      "},
+      indoc! {"
+        .foo {
+          transform: translate3d(0, 0, 0);
+        }
+      "},
+    );
+  }
+
   #[test]
   pub fn test_gradients() {
     minify_test(
diff --git a/src/properties/transform.rs b/src/properties/transform.rs
index 255beeeb8..7e5763fb9 100644
--- a/src/properties/transform.rs
+++ b/src/properties/transform.rs
@@ -1058,7 +1058,7 @@ impl ToCss for Transform {
         dest.write_char(')')
       }
       Translate3d(x, y, z) => {
-        if dest.minify && !x.is_zero() && y.is_zero() && z.is_zero() {
+        if dest.minify && y.is_zero() && z.is_zero() {
           dest.write_str("translate(")?;
           x.to_css(dest)?;
         } else if dest.minify && x.is_zero() && !y.is_zero() && z.is_zero() {