This decision is from Dave Rupert / Chris Coyer (I think). This requires a div shell, but it works very well.
HTML
<div class="iframe-rwd"> <iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=Seattle,+WA&aq=0&oq=seattle&sll=37.822293,-85.76824&sspn=6.628688,16.907959&t=h&ie=UTF8&hq=&hnear=Seattle,+King,+Washington&z=11&ll=47.60621,-122.332071&output=embed"></iframe><br /><small><a href="https://maps.google.com/maps?f=q&source=embed&hl=en&geocode=&q=Seattle,+WA&aq=0&oq=seattle&sll=37.822293,-85.76824&sspn=6.628688,16.907959&t=h&ie=UTF8&hq=&hnear=Seattle,+King,+Washington&z=11&ll=47.60621,-122.332071" style="color:#0000FF;text-align:left">View Larger Map</a></small> </div>
CSS
.iframe-rwd { position: relative; padding-bottom: 65.25%; padding-top: 30px; height: 0; overflow: hidden; } .iframe-rwd iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
cpg 01 Oct 2018-12-12T00: 00Z
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