diff --git a/assets/css/base.scss b/assets/css/base.scss
index 23d95620..6eeb922b 100644
--- a/assets/css/base.scss
+++ b/assets/css/base.scss
@@ -176,11 +176,7 @@ th {
   grid-gap: var(--l-gap);
 }
 
-.multi-column {
-  column-count: auto;
-  column-gap: var(--l-gap);
-  column-width: var(--auto-grid-min-size);
-}
+@import './structures/multi-column';
 @import './structures/table-of-content';
 
 .small-left-grid {
diff --git a/assets/css/structures/_multi-column.scss b/assets/css/structures/_multi-column.scss
new file mode 100644
index 00000000..735fb062
--- /dev/null
+++ b/assets/css/structures/_multi-column.scss
@@ -0,0 +1,5 @@
+.multi-column {
+  column-count: auto;
+  column-gap: var(--l-gap);
+  column-width: var(--auto-grid-min-size);
+}