Hello, I found an emergency workaround. If debian.css defines partnerlogo as a fixed width (300px is enough for the biggest logo) instead of a proportional width, then page renders correct:
div.partnerlogo {
display: table-cell;
vertical-align: middle;
text-align: center;
width: 300px;
}
I am not a css expert, so if you have a better solution, go ahead and deploy it.
Regards.
Andre Felipe Machado
http://www.techforce.com.br

