diff --git a/frontends/etiquette_flask/static/css/common.css b/frontends/etiquette_flask/static/css/common.css
index 77691b8..8d1be24 100644
--- a/frontends/etiquette_flask/static/css/common.css
+++ b/frontends/etiquette_flask/static/css/common.css
@@ -147,7 +147,6 @@ pre
     bottom: 8px;
     top: 34px;
     padding: 8px;
-    box-sizing: border-box;
     width: var(--size_sticky_side);
     overflow-y: auto;
     background-color: var(--color_site_transparency);
diff --git a/frontends/etiquette_flask/static/css/photo_card.css b/frontends/etiquette_flask/static/css/photo_card.css
index 805957b..83db259 100644
--- a/frontends/etiquette_flask/static/css/photo_card.css
+++ b/frontends/etiquette_flask/static/css/photo_card.css
@@ -30,7 +30,6 @@
     width: 100%;
     margin-right: 8px;
     margin-bottom: 8px;
-    box-sizing: border-box;
     padding: 8px;
 }
 .album_card_thumbnail