diff --git a/layout/style/res/forms.css b/layout/style/res/forms.css
index c8d56e7d86b3..dcd45d9c6dcc 100644
--- a/layout/style/res/forms.css
+++ b/layout/style/res/forms.css
@@ -625,10 +625,6 @@ input:is([type=reset], [type=button], [type=submit]):hover {
 ::file-selector-button:active:hover,
 button:active:hover,
 input:is([type=reset], [type=button], [type=submit], [type=color]):active:hover {
-%ifndef XP_MACOSX
-  padding-block: 0;
-  padding-inline: 9px 7px;
-%endif
   border-style: inset;
   background-color: ButtonFace;
 }
@@ -658,11 +654,7 @@ input:is([type=reset], [type=button], [type=submit]):active:hover {
 button:is(:disabled, :disabled:active),
 input:is([type=reset], [type=button], [type=submit], [type=color]):is(:disabled, :disabled:active),
 select:is(:disabled, :disabled:active) > button {
-  /* The sum of border and padding on block-start and block-end
-     must be the same here and for text inputs */
-  padding-block: 0;
-  padding-inline: 8px;
-  border: 2px outset ThreeDLightShadow;
+  border-style: outset;
   cursor: unset;
 }