diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index e42bea0..51695b4 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -3430,12 +3430,12 @@
   @supports not -moz-bool-pref("userChrome.tab.photon_like_padding") {
     @supports -moz-bool-pref("userChrome.tab.lepton_like_padding") {
       .tabbrowser-tab {
-        padding-inline: 1px !important;
+        margin-inline: -1px !important;
       }
     }
     @supports not -moz-bool-pref("userChrome.tabbar.multi_row") {
       #TabsToolbar:not([multibar]) .tabbrowser-tab:not(:last-of-type) {
-        margin-inline-end: -1px !important;
+        margin-inline-end: -2px !important;
       }
     }
   }
diff --git a/src/padding/_tabbar_width.scss b/src/padding/_tabbar_width.scss
index 5535a03..9f89021 100644
--- a/src/padding/_tabbar_width.scss
+++ b/src/padding/_tabbar_width.scss
@@ -92,12 +92,13 @@
 @include NotOption("userChrome.tab.photon_like_padding") {
   @include Option("userChrome.tab.lepton_like_padding") {
     .tabbrowser-tab {
-      padding-inline: 1px !important;
+      // Original: padding-inline 2px, margin-inline 0px #643
+      margin-inline: -1px !important;
     }
   }
   @include NotOption("userChrome.tabbar.multi_row") {
     #TabsToolbar:not([multibar]) .tabbrowser-tab:not(:last-of-type) {
-      margin-inline-end: -1px !important;
+      margin-inline-end: -2px !important;
     }
   }
 }