diff --git a/app/assets/stylesheets/buttons.css b/app/assets/stylesheets/buttons.css
index a4e7199e0..274d80ceb 100644
--- a/app/assets/stylesheets/buttons.css
+++ b/app/assets/stylesheets/buttons.css
@@ -104,7 +104,7 @@
   }
 
   /* Make a normal button circular on mobile */
-  @media (max-width: 640px) {
+  @media (max-width: 639px) {
     .btn--circle-mobile {
       aspect-ratio: 1;
       padding: 0.5em;
diff --git a/app/assets/stylesheets/card-perma.css b/app/assets/stylesheets/card-perma.css
index bc7c6a1d5..150dde9a1 100644
--- a/app/assets/stylesheets/card-perma.css
+++ b/app/assets/stylesheets/card-perma.css
@@ -78,7 +78,7 @@
 
     .card__meta,
     .card__stages {
-      @media (min-width: 639px) {
+      @media (min-width: 640px) {
         font-size: var(--text-small);
       }
     }
@@ -119,14 +119,14 @@
       inset: calc(var(--bubble-size) / -4) calc(var(--bubble-size) / 1.5) auto auto;
       translate: 0 0;
 
-      @media (max-width: 800px) {
+      @media (max-width: 799px) {
         --bubble-size: 4.5rem;
 
         inset: calc(var(--bubble-size) / 1.5) 0 auto auto;
       }
     }
 
-    @media (max-width: 800px) {
+    @media (max-width: 799px) {
       --padding-inline: var(--main-padding);
 
       column-gap: 0;
@@ -169,7 +169,7 @@
   .card-perma__actions--left { grid-area: actions-left; }
   .card-perma__actions--right { grid-area: actions-right; }
 
-  @media (max-width: 800px) {
+  @media (max-width: 799px) {
     .card-perma__actions {
       display: flex;
       padding-inline: var(--padding-inline);
diff --git a/app/assets/stylesheets/reactions.css b/app/assets/stylesheets/reactions.css
index 421c56d23..ed6187bae 100644
--- a/app/assets/stylesheets/reactions.css
+++ b/app/assets/stylesheets/reactions.css
@@ -190,7 +190,7 @@
     gap: var(--inline-space-half);
     grid-template-columns: repeat(10, 1fr);
 
-    @media (max-width: 630px) {
+    @media (max-width: 639px) {
       grid-template-columns: repeat(6, 1fr);
     }