Import the framework.

_layouts/category.html

@@ -0,0 +1,26 @@
+---
+layout: page
+# The Category layout
+# © 2017-2019 Cotes Chung
+# MIT Licensed
+---
+
+{% include date-format.html %}
+
+<div id="page-category">
+  <h1>
+    <i class="far fa-folder-open fa-fw text-muted"></i>
+    {{ page.title }}
+    <span class="lead text-muted pl-2">{{ site.categories[page.category] | size }}</span>
+  </h1>
+
+  <ul class="post-content pl-0">
+    {% for post in site.categories[page.category] %}
+    <li class="d-flex justify-content-between pl-md-3 pr-md-3">
+      <a href="{{ post.url | absolute_url }}">{{ post.title }}</a>
+      <span class="dash flex-grow-1"></span>
+      <span class="text-muted small">{{ post.date | date: POST_DATE }}</span>
+    </li>
+    {% endfor %}
+  </ul>
+</div>