page.html

<script type="text/javascript">
	$(function(){
		var currentURL = '{{post.url}}';
		currentURL = currentURL.substr(0,currentURL.length-5);
		$('#menu_item_'+currentURL).addClass('is_active');
	});
</script>
<div class="row">

    <div id="single-page-wrap">
        <h1>{{post.title}}</h1>

        <div class="markdown-body post-page">
        {{ post.content }}
        </div>
    </div>
</div>