how to remove empty styles that creates stellar on divs and body

[petrospap]

Hello!
I use stellar, only one photo, with this settings

<div class="parallax photo1" data-stellar-background-ratio="0.4">
$.stellar({
horizontalScrolling:false,
verticalOffset:0
});

files
jquery-3.0.0.min.js
jquery-migrate-3.0.0.min.js
jquery.stellar.min.js v0.6.2

now the weird is that generate an empty style=""
on body and 3 other divs
as soon i remove data-stellar-background-ratio or $.stellar i don't have those empty styles!

Any idea how to fix this?
Thank you