.mainborder
{
    BORDER-RIGHT: black 1px solid;
    BORDER-LEFT: black 1px solid;
}
.bottomborder
{
    BORDER-BOTTOM: black 1px solid;
}
.topborder
{
    BORDER-TOP: black 1px solid;
}
.rightborder
{
    BORDER-RIGHT: black 1px solid;
}
.withouttopborder
{
    BORDER-RIGHT: black 1px solid;
    BORDER-LEFT: black 1px solid;
    BORDER-BOTTOM: black 1px solid;
}
.allborders
{
    BORDER-RIGHT: black 1px solid;
    BORDER-LEFT: black 1px solid;
    BORDER-BOTTOM: black 1px solid;
    BORDER-TOP: black 1px solid;
}