fix plotly resizing

extra_markdown.tpl

@@ -11,12 +11,8 @@
 <script>
 window.addEventListener('load', function() {
   Plotly.d3.json('/{{plotly_url}}', function(error, fig) {
-    MathJax.Hub.Queue(
-      ["setRenderer",MathJax.Hub,"SVG"]
-    );
-    Plotly.plot('{{div_id}}', fig.data, fig.layout);
-    MathJax.Hub.Queue(
-      ["setRenderer",MathJax.Hub,"HTMLCSS-output"]
+    Plotly.plot('{{div_id}}', fig.data, fig.layout).then(
+      function(value) {Plotly.relayout('{{div_id}}', {height: ' '})}
     );
   });
 });