diff --git a/resources/css/blocks/content-box.css b/resources/css/blocks/content-box.css
index eb46c88..ce067e1 100644
--- a/resources/css/blocks/content-box.css
+++ b/resources/css/blocks/content-box.css
@@ -20,6 +20,12 @@
 
   &--bg-dark {
     --content-box-text-color: #fff;
+
+    a[target='_blank'] {
+      &:after {
+        background-image: url('../resources/img/carhop-fleche-lien-externe-full--white.svg');
+      }
+    }
   }
 
   &__innerblocks {