@charset "utf-8";

#is_layer {
	position: fixed;
	top: 0px;
	left: 0px;
	width: 100px;
	height: 100px;
	visibility:hidden;
	text-align: center;
	z-index: 90;
}

#is_trans {
	position: absolute;
	top: 0;
	left: 0;
	width: 100px;
	height: 100px;
	background: transparent;
	background-color: #777777;
/* 	filter: alpha(opacity=75); */
/* 	-moz-opacity: .75; */
	opacity: .85;
}

#img_on_is_layer {
	position: absolute;
	top: 20px;
	left: 33px;
	width: 50px;
	height: 50px;
	text-align: center;
}

#is_layer_off {
	position: absolute;
	top: 10px;
	right: 50px;
	z-index: 120;
}

.off_bttn {
	background-image: url(bttn_a.png);
	background-repeat: no-repeat;
	height: 20px;
	width: 20px;
}

.off_bttn a{
	background-image: url(bttn_a.png);
	background-repeat: no-repeat;
	height: 20px;
	width: 20px;
	display: block;
}

.off_bttn a:hover{
	background-image: url(bttn_ahover.png);
}