Fix: <source lang='javascript'> w = '< div class="qtip-borderTop" dir="ltr" style="height:' + B + "px; background-color:" + x + "; margin-left:" + B + 'px; line-height:0.1px; font-size:1px; padding:0;">' + u.topLeft + u.topRight + y; F.elements.wrapper.prepend(w); C = '< div class="qtip-borderBottom" dir="ltr" style="height:' + B + "px; background-color:" + x + "; margin-left:" + B + 'px; line-height:0.1px; font-size:1px; padding:0;">' + u.bottomLeft + u.bottomRight + y; </source> Added background-color for qtip-borderTop/qtip-borderBottom