faint border on transparent background, but only when used in Dreamweaver
I created a logo for my client in Illustrator and 'exported for screens' with a transparent background. I've tried doing this creating a PNG file and also with an SVG file.
The problem I have is that when I use either of these files in Dreamweaver the image ends up having a faint gray outline, like the border of the artboard from Illustrator. This appears both in 'Live view' on my computer, but also when I preview it on my iPad or iPhone. If I 'place' this same image into InDesign the border does not appear. If I open it in Photoshop, the border does not appear.
I've read suggestions about eliminating the border in Photoshop, but since it does not appear there, doesn't seem to apply to this situation. I've also read that I should make sure that my Illustrator artboard is not aligned on partial pixels - did that, didn't help.
Here is a screenshot of what I'm seeing. The issue is the gray border that touches the logo.
Any suggestions about how I can either avoid this to begin with, or eliminate it afterward?
Thank you in advance.

