The style declared in margin at-rules (@margin-top-right) must apply to the margin-box div created by pagedjs (div class="pagedjs_margin-top-right") and not to the content div created by pagedjs(div class="pagedjs_margin-content").

HTML:margin-boxes-style.html

Result: margin-boxes-style-wrong.pdf

The result we should get: margin-boxes-style-correct.pdf

HTML working: margin-boxes-style-working.html