[Theme Horse Support Team]

Hi Anil,

You have to set the iframe to 100% width rather than a fixed width.
If you can not set the width just try below custom CSS code to set the width to 100%.

Go to Appearance > Customize > Additional CSS and paste the below provided Custom CSS code.

.post .entry-content iframe {
    width: 100% !important;
}

Hope this will help

Thank you!

[Author]

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