Responsive Google Map with Bootstrap Responsive Embed

How: 

<div class="embed-responsive embed-responsive-4by3">
<iframe class="embed-responsive-item" allowfullscreen="" frameborder="0" height="450"
src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d891.1513492795348!...
style="border:0" width="600">
</iframe>
</div>