[wajdi ben ftima]

I used Calibre to convert my HTML file to EPUB3 and check it with its viewer and I notice that a lot of syles are missing !!!!

so I check the created ebook's files using calibre local editor and what I came up with is all div's class has changed (it add calibre1 to each div or change content-block to content-block1 for example )

so is there any option to ignore those changes?

mean force calibre to import the file without adding any additional class or divs.