Sigil/webkit adds that upon switching to CV, (The jump is annoying)
@page exists for some reason
I like your clean style

Set the basics in Body
and code the exceptions to Basic.
I tend to strip <p..></p>, it does nothing
<p...> </p> does insert a (scene break) paragraph margin line
I also use "entities" rather than images for scene breakes and control their appearance and placement with their own style (class="scene"

)