Download the inner content of the <div class="default">, if present.

div class default – Download.txt

<script>

function downloadHTML() {
	var divDef = document.querySelector(&quot;div.default&quot;).innerHTML;
	var title = &quot;<data:post.title/>&quot; + &quot;.html&quot;;
	
	if (divDef) {
		var pom = document.createElement(&#39;a&#39;);
		pom.setAttribute(&#39;href&#39;, &#39;data:text/html;charset=utf-8,&#39; + encodeURIComponent(divDef));
		pom.setAttribute(&#39;download&#39;, title);

		if (document.createEvent) {
			var event = document.createEvent(&#39;MouseEvents&#39;);
			event.initEvent(&#39;click&#39;, true, true);
			pom.dispatchEvent(event);
		} else {
			pom.click();
		}
		
	}
	
}

</script>