make iframe google map black and white

Question

I have used a google map in iframe.

<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.co.in/maps?f=q&amp;source=s_q&amp;hl=en&amp;geocode=&amp;q=Madurai,+Tamil+Nadu&amp;aq=0&amp;oq=madursi&amp;sll=10.782836,78.288503&amp;sspn=5.674603,10.755615&amp;ie=UTF8&amp;hq=&amp;hnear=Madurai,+Tamil+Nadu&amp;t=m&amp;z=12&amp;ll=9.925201,78.119775&amp;output=embed"></iframe><br /><small><a href="https://maps.google.co.in/maps?f=q&amp;source=embed&amp;hl=en&amp;geocode=&amp;q=Madurai,+Tamil+Nadu&amp;aq=0&amp;oq=madursi&amp;sll=10.782836,78.288503&amp;sspn=5.674603,10.755615&amp;ie=UTF8&amp;hq=&amp;hnear=Madurai,+Tamil+Nadu&amp;t=m&amp;z=12&amp;ll=9.925201,78.119775" style="color:#0000FF;text-align:left">View Larger Map</a></small>

How to display a google map in black and white color?

Answer 1

This one is achieved by using some css

Here is working code

.map {
         filter: grayscale(100%);         
}

<iframe class="map" src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d4917.1193047590605!2d4.4690507720313!3d51.96022102967837!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x47c5cb67ae23c02d%3A0xdac4c06bc7904d2!2sRododendronplein+10%2C+3053+ES+Rotterdam%2C+Nederland!5e0!3m2!1snl!2ses!4v1541007683407" width="600" height="450" frameborder="0" style="border:0" allowfullscreen></iframe>

Answer 2

Try to use

<iframe class="map" width="100%" height="100%" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://maps.google.com/maps(...)"></iframe>

.map {
        -webkit-filter: grayscale(100%);
        -moz-filter: grayscale(100%);
        -ms-filter: grayscale(100%);
        -o-filter: grayscale(100%);
         filter: grayscale(100%);
}

This will help