.gridb	{
	background-image: url('images/10x20PentominoGrid261.gif');
	background-repeat: no-repeat;
	background-position: center center ;
	}
.fv	{
	background-image: url("images/fPentoAg.gif");
	background-repeat: no-repeat;
	background-position:  center center;
	}
.lv	{
	background-image: url("images/LPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.iv	{
	background-image: url("images/iPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center bottom;
	}

.pv	{
	background-image: url("images/pPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.sv	{
	background-image: url("images/sPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.tv	{
	background-image: url("images/TPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.uv	{
	background-image: url("images/uPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.vv	{
	background-image: url("images/vPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.wv	{
	background-image: url("images/wPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.xv	{
	background-image: url("images/xPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.yv	{
	background-image: url("images/yPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}
.zv	{
	background-image: url("images/zPentoAg.gif");
	background-repeat: no-repeat;
	background-position: center center;
	}