diff --git a/gfi-ihk-2024/stories/sections/feature/feature.scss b/gfi-ihk-2024/stories/sections/feature/feature.scss
index 7033258..4fd187f 100644
--- a/gfi-ihk-2024/stories/sections/feature/feature.scss
+++ b/gfi-ihk-2024/stories/sections/feature/feature.scss
@@ -9,6 +9,26 @@
   padding: var(--section-padding) 0;
   border-bottom: var(--border-width) solid var(--theme-color-secondary);
   margin: var(--section-margin) auto;
+  position: relative;
+
+  &:after {
+    content: "";
+    background: var(--theme-color-primary);
+    border-bottom: var(--border-width) solid var(--theme-color-secondary);
+    position: absolute;
+    left: 50%;
+    top: 0;
+    width: 100vw;
+    height: calc(100% + var(--border-width));
+    margin: 0 -50vw;
+    z-index: -1;
+  }
+  .has-sidebar & {
+    padding: var(--section-padding);
+    &:after {
+      display: none;
+    }
+  }
 
   h2 {
     margin-bottom: 0.4em;