Hello,
Looking at the website URL you gave ; I don't think that this "yellow" block is related to HikaShop.
And in any case, please understand that customization is outside the limits of our support.
But if you want to know more about customization and CSS :
www.hikashop.com/support/documentation/1...ize-the-display.html
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.