.GridHeader
{ 
   border-style:none!important;
   border-bottom-style:solid!important;
   border-color:#E5E5E5!important;
   border-right-style:none!important;
   border-left-style:none!important;
}

.fixedHeader 
{
	position: relative;
}

/* override the DevExpress default, don't change the name*/
.dxgv
{
	border-color:#E5E5E5!important;
	border-left-style:solid!important;
	border-right-style:solid!important;
	border-width:1px!important;
}