content.css line 600 has "#template-g #panel-flexible-268 .row-wrapper-4 { ... border-color:-moz-use-text-color white white; border-style:none solid solid; border-width:medium 8px 8px;}".
I don't have time to investigate fully, but it might be that WebKit and Trident ignore the "white white" as soon as they see the "-moz-use-text-color".
content.css line 600 has "#template-g #panel-flexible-268 .row-wrapper-4 { ... border- color:- moz-use- text-color white white; border-style:none solid solid; border-width:medium 8px 8px;}".
I don't have time to investigate fully, but it might be that WebKit and Trident ignore the "white white" as soon as they see the "-moz-use- text-color" .