  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}</title>
    <link rel="canonical" href="{{ page.url | replace:'index.html','' | prepend: site.baseurl | prepend: site.url }}">
    <!-- Bootstrap -->
    <!-- Latest compiled and minified CSS -->
	<link rel="stylesheet" href="/css/bootstrap.min.css" />

	<!-- Optional theme -->
	<link href="/css/simple-sidebar.css" rel="stylesheet" />
	<link rel="stylesheet" href="{{ "/css/main.css" | prepend: site.baseurl }}">

    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->
  </head>

  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <title>{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}</title>
    <link rel="canonical" href="{{ page.url | replace:'index.html','' | prepend: site.baseurl | prepend: site.url }}">
    <!-- Bootstrap -->
    <!-- Latest compiled and minified CSS -->
	<link rel="stylesheet" href="/css/bootstrap.min.css" />

	<!-- Optional theme -->
	<link href="/css/simple-sidebar.css" rel="stylesheet" />
	<link rel="stylesheet" href="{{ "/css/main.css" | prepend: site.baseurl }}">

    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->
  </head>

Add shrink-to-fit to viewport meta tag
Add shrink-to-fit to viewport meta tag

I noticed that toggling the menu caused the site to rapidly zoom out - thought this might be my first encounter with the infamous [iOS 9 viewport scaling bug](https://forums.developer.apple.com/thread/13510). According to that thread, and to [Bram.us](https://www.bram.us/2015/10/06/ios9-mobilesafari-viewport-problem/), adding `shrink-to-fit=no` to the `content` attribute should remedy this.