diff --git a/css/base.css b/css/base.css
index bfa701b..59e04a4 100644
--- a/css/base.css
+++ b/css/base.css
@@ -477,11 +477,11 @@ section.section:not(.\~neutral) {
 
 /* places buttons inside a sibling input element (hopefully), based on the flex gap of the parent. */
 .gap-1 > .button.inside-input {
-    margin-left: calc(var(--inside-input-base) - 1.0*var(--tailwind-spacing));
+    margin-inline-start: calc(var(--inside-input-base) - 1.0*var(--tailwind-spacing));
 }
 
 .gap-2 > .button.inside-input {
-    margin-left: calc(var(--inside-input-base) - 2.0*var(--tailwind-spacing));
+    margin-inline-start: calc(var(--inside-input-base) - 2.0*var(--tailwind-spacing));
 }
 
 .force-ltr {