Campaigns editing my HTML code

Campaigns editing my HTML code

Hi,

I'm trying to create a section of an email that uses an external image but Zoho Campaigns keeps editing my code as soon as I save it.

Here's what I'm adding:
And here's what it's doing:

The problem is, the original image is a countdown timer with a set end time. The changed code means it's become a looped version that resets each time the email is opened, defeating the entire purpose.

Is there a way to stop this happening?