From de3bbd2feb95be24661a00873e438fc24d445850 Mon Sep 17 00:00:00 2001
From: sefeng <sefeng@mozilla.com>
Date: Thu, 9 Jul 2020 19:46:44 +0000
Subject: [PATCH] Bug 1651089 - Use transform instead of translate to position
 dialog r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D82538
---
 layout/style/res/html.css | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/layout/style/res/html.css b/layout/style/res/html.css
index 409110132a52..c79b6534f14d 100644
--- a/layout/style/res/html.css
+++ b/layout/style/res/html.css
@@ -844,7 +844,7 @@ dialog:-moz-modal-dialog {
   max-height: 100vh;
   max-width: 100vw;
   top: 50%;
-  translate: 0 -50%;
+  transform: translateY(-50%);
   overflow: auto;
 }