How to change the map size when reducing the screen?

How to customize this card for small screen mobile devices ?
<iframe src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d2916.2249926989184!2d44.68559811493041!3d43.03669740009471!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x40500a90076b6477%3A0xb5ce4a772945792!2z0YPQuy4g0JrQuNGA0L7QstCwLCA3NCwg0jlqu9cw0ltqunc60ldqstc60ldqtywg0kdqtdgb0l8uinch0lxqstc10ydqvdcw0y8g0j7rgdc10ylqungpldcq0lvqsnc90ljrjywgmzyymdi3!5e0!3m2!1sru!2sru!4v1470587178958" width="600" height="450" frameborder="0" style="border:0" allowfullscreen></iframe>
July 4th 19 at 23:08
0 answer

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