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Custom CSS Responsive iframe not working

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Site URL: https://finch-stingray-xe7m.squarespace.com/werkgebied

My page can be viewed using this password: clogs



I am trying to show a Google MyMaps iframe to load in responsive view. It should be at 100% width on both desktop and mobile view, but it is failing to do so.

The code I injected is from this tutorial: https://www.w3schools.com/howto/howto_css_responsive_iframes.asp

This is the code I used in the code-block:

<div class="container">
  <iframe class="responsive-iframe" src="https://www.google.com/maps/d/embed?mid=1z5TX60I4DPiRlBfMpn16J2iNhscPWlI&ehbc=2E312F"></iframe>

And this in the Custom CSS:

/* 16:9 Aspect Ratio (divide 9 by 16 = 0.5625) */
.container {
  position: relative;
  overflow: hidden;
  width: 100%;
  padding-top: 56.25%;

/* Then style the iframe to fit in the container div with full height and width */
.responsive-iframe {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;


I am no coder myself, so I followed the tutorial, but perhaps I need to set the CSS classes different for SQSP. never understand how this works for SQSP.


Hopefully there is a CSS guru who know what I need to do to make it work. 😏

Thanks in advance! 🙏



Schermafbeelding 2022-07-10 om 16.59.18.png

Edited by Groeipiraat
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On 7/11/2022 at 7:40 AM, tuanphan said:

Add to Design > Custom CSS

/* GG Map */
iframe.responsive-iframe[src*="maps"] {
    width: 100% !important;
    height: 700px;


This works! Amazing, thank you for this! 🙌

Is this all I need, or do I still need the code I posted here?

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