Quick Tip: Removing hairline borders in HTML emails on iPhone & iPad
We sometimes run into an issue with hairline borders appearing in HTML email designs with table layouts, these borders are sometimes barely visible and appear only at certain zoom levels. This might look something like the image below:
This usually happens when you apply background color to two or more table cells individually, like the code below:
To prevent this from happening nest the problematic table into a new table with a background color that matches that of the inner table. For example:
This tip works like a charm and should help you design your emails campaigns better.