Remove reduntant `class=""`

templates/blog/post.html

@@ -14,7 +14,7 @@
           <figure>
             {% set image = resize_image(path="@/" ~ post.colocated_path ~ "/" ~ post.extra.depiction.image, width=800, height=600) -%}
             <div class="image is-4by3">
-              <img class="" src="{{ image.url }}" alt="{{ post.extra.depiction.alt }}" />
+              <img src="{{ image.url }}" alt="{{ post.extra.depiction.alt }}" />
             </div>
             {% if post.extra.depiction.credits %}
               <figcaption>{{ post.extra.depiction.credits }}</figcaption>