chore: move posts to qmd

vega-lite.lua

@@ -30,8 +30,9 @@ function CodeBlock(block)
     local echo = block.attributes['echo']
     local codeFold = block.attributes['code-fold']
 
-    -- Default to showing code
+    -- Default to showing code collapsed
     if echo == nil then echo = "true" end
+    if codeFold == nil then codeFold = "true" end
 
     local result = {}
 
@@ -62,7 +63,9 @@ function CodeBlock(block)
 
     -- Create the HTML output for the visualization
     local html = string.format([[
-<div id="%s"></div>
+<div class="vega-viz-container">
+  <div id="%s"></div>
+</div>
 <script type="text/javascript">
   vegaEmbed('#%s', %s, {"actions": true});
 </script>