I'm trying to style the distance of text around images and I've experimented with margin and padding.For testing purposes I tried 100px around images and what I have seen is that with padding the image is severely scaled down when viewed in the browser.So my concern is that this scaling down is reducing load speed and in that sense its bad for SEO.To this respect it appears better to use margin instead of padding.Does anyone have a better understanding of the above issue? 
Is it better for SEO to use margin or padding around images?
seo;css;images;performance