diff --git a/assets/scss/partials/layout/article.scss b/assets/scss/partials/layout/article.scss
index 92e1167..674a497 100644
--- a/assets/scss/partials/layout/article.scss
+++ b/assets/scss/partials/layout/article.scss
@@ -260,9 +260,9 @@
     h4,
     h5,
     h6 {
-        margin-left: calc((var(--card-padding)) * -1);
-        padding-left: calc(var(--card-padding) - var(--heading-border-size));
-        border-left: var(--heading-border-size) solid var(--accent-color);
+        margin-inline-start: calc((var(--card-padding)) * -1);
+        padding-inline-start: calc(var(--card-padding) - var(--heading-border-size));
+        border-inline-start: var(--heading-border-size) solid var(--accent-color);
     }
 
     figure {
@@ -277,7 +277,7 @@
     blockquote {
         position: relative;
         margin: 1.5em 0;
-        border-left: var(--blockquote-border-size) solid var(--card-separator-color);
+        border-inline-start: var(--blockquote-border-size) solid var(--card-separator-color);
         padding: 15px calc(var(--card-padding) - var(--blockquote-border-size));
         background-color: var(--blockquote-background-color);
     }