Hi,
The basic design of the page use joomla3 bootstrap.
The problem is that the image width is larger than the "left" size so the right part couldn't be displayed correctly beside so it was displayed below.
By overriding the width of the right part, you have reduce his size so it could be displayed correctly.
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.