iframe widget pooling (experimental)

plugs/markdown/assets/markdown_widget.css

@@ -1,9 +1,8 @@
 /* Reset SB styles */
-html,
+
 body {
-    height: initial !important;
-    overflow: initial !important;
-    background-color: var(--root-background-color);
+    font-family: var(--editor-font);
+    color: var(--root-color);
 }
 
 #sb-main {
@@ -26,11 +25,6 @@ body {
     height: initial !important;
 }
 
-body {
-    font-family: var(--editor-font);
-    color: var(--root-color);
-}
-
 ul,
 ol {
     margin-top: 0;

plugs/markdown/markdown_content_widget.ts

@@ -33,8 +33,6 @@ export async function wrapHTML(html: string): Promise<string> {
   const css = await asset.readAsset("assets/markdown_widget.css");
 
   return `
-       <!-- Load SB's own CSS here too -->
-       <link rel="stylesheet" href="/.client/main.css" />
        <!-- In addition to some custom CSS -->
        <style>${css}</style>
        <!-- Wrap the whole thing in something SB-like to get access to styles -->