diff --git a/css/theme/vlb-enhancements.base.css b/css/theme/vlb-enhancements.base.css
index 9fd807db421ba5b81edd59424e4ca10e1f5febda..db5bf4d3285054294b71e3261bb73bd7eee9f88f 100644
--- a/css/theme/vlb-enhancements.base.css
+++ b/css/theme/vlb-enhancements.base.css
@@ -627,6 +627,11 @@ body .layout-builder__add-block.is-layout-builder-highlighted {
   color: #fff !important;
 }
 
+#layout-builder-modal .ck-source-editing-area textarea {
+  height: -webkit-fill-available;
+  border-radius: 0;
+}
+
 body #drupal-off-canvas-wrapper {
   z-index: 502;
   padding: 0;
diff --git a/scss/theme/vlb-enhancements.base.scss b/scss/theme/vlb-enhancements.base.scss
index 9da866efdc224fc79fa7265f5cab8c4ac59debc9..34d1741073a09663d4d1e2470c0779e30bae0bd7 100644
--- a/scss/theme/vlb-enhancements.base.scss
+++ b/scss/theme/vlb-enhancements.base.scss
@@ -679,6 +679,13 @@ body {
     color: #fff !important;
   }
 
+  .ck-source-editing-area {
+    textarea {
+      height: -webkit-fill-available;
+      border-radius: 0;
+    }
+  }
+
 }
 
 body {