howto.html in appscms-tools-theme-4.0.6

- old
+ new

@@ -44,9 +44,10 @@
               crossorigin
               {%-
               endif
               -%}class="img-fluid align-self-end"
               alt="Your Image"
+              style="width: 100%; height: 100%"
             />
           </div>
           {%- endif -%}
         </div>
         <div class="col-md-6 appscms-howto-steps">