google maps responsive
<style> .map-responsive{ overflow:hidden; padding-bottom:56.25%; position:relative; height:0; } .map-responsive iframe{ left:0; top:0; height:100%; width:100%; position:absolute; } </style> <div class="map-responsive"> <iframe src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d3003.65302474174!2d-8.622871484603664!3d41.16392197928525!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0xd2465ac0e521635%3A0x6e4f143809534218!2sRua%20de%20Serpa%20Pinto%2C%20Porto!5e0!3m2!1spt-PT!2spt!4v1603461184237!5m2!1spt-PT!2spt" width="550" height="350" frameborder="0" style="border:0;" allowfullscreen="" aria-hidden="false" tabindex="0"></iframe> </div>
