Border for pivot Table in Custom Themes

[Anonymous]

Hi,

I want to give the borders and the background color  for the header section of  pivot table  by using the custom themes.

can anyone please give the suggestion to achieve this.

I have tried with this code but it doesn't works for me.

.qv-object-content-container .qv-object-content table th:nth-of-type(even) {

  background: #f9f5ed;

   border: 1px solid #848383;

}

Thanks,

santhosh