max width 900px for all iamges

app/views/blog/blog.twig

@@ -38,7 +38,7 @@
                             <br><br>
                         {# </span> #}
                         {% if post.image is defined %}
-                            <img class="img-fluid" src="{{ post.image.src }}" alt="{{ post.image.alt ?? "" }}">
+                            <img max-width="900" class="img-fluid" src="{{ post.image.src }}" alt="{{ post.image.alt ?? "" }}">
                             <hr>
                         {% endif %}
                         <p>{{ post.teaser|raw }}</p>

app/views/blog/post.twig

@@ -31,7 +31,7 @@
 
                 <hr>
                 {% if post.image is defined %}
-                    <img class="img-fluid" src="{{ post.image.src }}" alt="{{ post.image.alt ?? "" }}">
+                    <img max-width="900" class="img-fluid" src="{{ post.image.src }}" alt="{{ post.image.alt ?? "" }}">
                     {% if post.image.caption is defined %}
                         <p><em>{{ post.image.caption }}</em></p>
                     {% endif %}