Can't converto xml to html correctly

Hi everyone,

i'm facing a problem and i have no idea how turn around.

i have a XML file and using designer i can convert to PDF perfectly, but when i convert to HTML, the configuration is lost.

the rounded corners and the table size are lost.

how can i convert to HTML like i convert to pdf?without lost configuration.

sorry my english bug, not my native language,
if my problem wasn't self explain i can post some images

the best regards,
João