diff --git a/brutaldon/static/css/minimal-large.css b/brutaldon/static/css/minimal-large.css
index 18a5f1f..5cdd8de 100644
--- a/brutaldon/static/css/minimal-large.css
+++ b/brutaldon/static/css/minimal-large.css
@@ -216,7 +216,7 @@ img.emoji
     vertical-align: text-bottom;
 }
 
-.is-hidden
+hr.is-hidden
 {
     display: none;
 }
diff --git a/brutaldon/static/css/vt240don-amber.css b/brutaldon/static/css/vt240don-amber.css
index 91303fa..3e62595 100644
--- a/brutaldon/static/css/vt240don-amber.css
+++ b/brutaldon/static/css/vt240don-amber.css
@@ -71,7 +71,7 @@ div.card-header-title, div.card-header-icon {
     margin-bottom: 1em;
 }
 
-.is-hidden {
+hr.is-hidden {
     display: none;
 }
 
diff --git a/brutaldon/static/css/vt240don-green.css b/brutaldon/static/css/vt240don-green.css
index 7d8d8eb..a34bfeb 100644
--- a/brutaldon/static/css/vt240don-green.css
+++ b/brutaldon/static/css/vt240don-green.css
@@ -75,7 +75,7 @@ div.card-header-title, div.card-header-icon {
     margin-bottom: 1em;
 }
 
-.is-hidden {
+hr.is-hidden {
     display: none;
 }