It seems that some people use:
html {
margin-left: -40px;
margin-right: -40px;
}
Here you can see other options:
https://www.mobileread.com/forums/sho...d.php?t=237267 hopefuly you can find one that works for you.
I will have to play with this when I get my new device, so I'll try to help sharing my conclusions.