Hi,
You have that displaying issue because your page is "scaled" by your browser (usage of the zoom).
You need to adjust the "order / invoice" view in order to tweak the block size.
Replacing
<div style="float:right;width:100px;padding-top:20px">
Into
<div style="float:right;width:10em;padding-top:20px">
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.