I'm using ContentImagebyKey() to pull in a dynamic image for an event specific email that changes based on location. That being said I have a CSV that's serving me the customerkey field.

The images are pulling in fine, but we're using a responsive layout, and I'd like the image to scale to 100% width in mobile.

<td class="responsive-td" width="216" style="width:36%;">
  <a href="%%=redirectto(@link)=%%" border="0">

what this results in is the image at it's native resolution off to the left. I can center the whole section, but I haven't found a way to specify style="width: 100%" for my mobile clients since I don't have access to the <img> tag itself.

Does anyone have a good solution to this?

1 Answer 1


As I inspected, the ampscript function outputs the very basic image html attributes.

<img title="xxxx" alt="xxxxx" src="public url of content" border="0">

I found the best way to add attributes to the <image> tag would be to use replace function.

Here is the sample code:



<img title="xxxx" alt="xxxxx" src="public url of content" border="0" style="width:100%;">

Note: You can add more attributes by using concat function.

  • Brilliant. Well done, works perfectly! I had to add the closing > in the replace field, in case you want to edit to add it. Thank you! Commented Mar 1, 2018 at 12:48
  • @KevinIllick no worries. glad I could help :) Commented Mar 1, 2018 at 22:34

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