Error in azw3 books with negative margins to reduce them

[mg10]

Hi All
I retake this topic from Calibre forum because maybe here thare are more possibilities of answer.
With my Scribe I'm using this option in Calibre (styles --> additional css), when converting from epub to azw3, in order to get desired margins:

html {
margin-right: -130px;
margin-left: -130px;
break-inside: avoid !important;
}

After updating a PW, I could see that this option caused an error when opening the book, or trying to change fonts: the one I indicated at the beginning of this thread:
"An error occurred. If you purchased this item from Amazon, delete the item and download it from the Cloud"

In order to avoid this behavior with my Scribe, I stay on an old firmware version because don't know if this error is going to be repeated in the Scribe.

My question is: can someone who has 5.16.6 release or latest in a Scribe, confirm if this happens as well? Someone who uses Calibre and transfers the books through it. I'd like to avoid upgrading if I can no longer use the margins I like, because I won't be able to downgrade it.

Thanks in advance

[Quoth]

Try a percentage -1.5% or only in the body text, not the html property, though that might be more work.
Leave out the

break-inside: avoid !important;

[JSWolf]

Originally Posted by Quoth

Try a percentage -1.5% or only in the body text, not the html property, though that might be more work.
Leave out the

break-inside: avoid !important;

Do not leave that out. I don't recall why it's there. But it is there to fix a bug in some version firmware at the time and for all we know, the bug could still be there.

I use this and it works. I've even used it on a PW5.

html {
  margin-right: -45px;
  margin-left: -45px;
  break-inside: avoid !important;
}

[issybird]

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