diff --git a/docs/Website/app.css b/docs/Website/app.css
index ec01730..4868c14 100644
--- a/docs/Website/app.css
+++ b/docs/Website/app.css
@@ -527,3 +527,16 @@
 .doc li + li {
   margin-block-start: var(--nv-space-2);
 }
+
+/* --- The feature rail --------------------------------------------------------- */
+/*
+   One declaration, because the component already does the rest: the equal
+   heights are the flex default, the snapping, the hidden scrollbar and the
+   fade that marks which end has more behind it are all .nv-scroller's. The
+   only thing it cannot know is how wide a card of *this* content wants to be,
+   and 18rem is a line where these carry a paragraph.
+*/
+
+.features {
+  --nv-scroller-item: 21rem;
+}
diff --git a/docs/Website/index.html b/docs/Website/index.html
index 066c16c..674d226 100644
--- a/docs/Website/index.html
+++ b/docs/Website/index.html
@@ -246,7 +246,13 @@
     </p>
   </div>
 
-  <div class="nv-card-grid">
+  <!-- A rail rather than a grid. Eleven cards stacked into a wall is a list
+       you skim and stop reading; a row you move through is one you go along.
+       The section is a survey, not a comparison -- nothing here needs to be
+       read beside anything else, which is the test for whether a grid was
+       carrying information or just filling space. -->
+  <div class="nv-scroller-frame" data-nv-scroller>
+    <div class="nv-scroller features">
     <article class="nv-card">
       <div class="nv-card__header">
         <h3 class="nv-card__title"><img class="cardmark" src="Assets/uberblock.svg" alt="">SchFS</h3>
@@ -385,6 +391,20 @@
         than before it.
       </div>
     </article>
+    </div>
+
+    <button class="nv-button nv-button--icon nv-button--float" data-nv-scroll="prev" aria-label="Previous">
+      <svg class="nv-button__icon" viewBox="0 0 24 24" fill="none" aria-hidden="true">
+        <path d="M14 6l-6 6 6 6" stroke="currentColor" stroke-width="2"
+              stroke-linecap="round" stroke-linejoin="round"/>
+      </svg>
+    </button>
+    <button class="nv-button nv-button--icon nv-button--float" data-nv-scroll="next" aria-label="Next">
+      <svg class="nv-button__icon" viewBox="0 0 24 24" fill="none" aria-hidden="true">
+        <path d="M10 6l6 6-6 6" stroke="currentColor" stroke-width="2"
+              stroke-linecap="round" stroke-linejoin="round"/>
+      </svg>
+    </button>
   </div>
 </section>