diff --git a/templates/mkdocs_markdown/index.md.j2 b/templates/mkdocs_markdown/index.md.j2
index 9b334bbd0d24e69d3a9661ecc08dd3df7bab4dec..684964c5cb2240c3b0847e4022c672ce60f6aba5 100644
--- a/templates/mkdocs_markdown/index.md.j2
+++ b/templates/mkdocs_markdown/index.md.j2
@@ -18,7 +18,7 @@
 {%- set fname = output.metadata.filenames['application/vnd.plotly.v1+json'] -%}
 {%- set plotly_url = fname | path2url -%}
 {%- set div_id = fname.split('/') | last -%}
-<div id="{{div_id}}" data-plotlySource="../{{ plotly_url }}" class="plotlyPlaceholder"><img ></img></div>
+<div id="{{div_id}}" data-plotlySource="../{{ plotly_url }}" class="plotlyPlaceholder" style="min-height: 75%;"></div>
 {%- endif -%}
 {%- endfor -%}
 {%- endblock -%}