http://www.webhostbul.net/templates/Sunny/css/style.css şuradaki
div.content
{
border: 1px solid #458EBF;
border-bottom: none;
padding-bottom: 1px;
ve


div.box-content
{

border: 1px solid #458EBF;
border-bottom: none;
padding-bottom: 1px;

0 yaparsan border ortadan kalkar yada renginide ayarlayabilirsin.