@charset "utf-8";


/* top */
ul.topNavi li {
	list-style: none;
	margin-left:8px;
	float:left;
	margin-right: 18px;
}
ul.topNavi li a {
	display:block;
	width:224px;
	height:242px;
}
ul.topNavi li.menubtn_1 a {
	background-image: url(../img/simulator_over.jpg);
	background-repeat: no-repeat;
	background-position: left top;
	margin-left: 10px;
}
ul.topNavi li.menubtn_2 a {
	background-image: url(../img/course_over.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}
ul.topNavi li.menubtn_3 a {
	background-image: url(../img/game_over.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}
ul.topNavi li.menubtn_4 a {
	background-image: url(../img/charge_over.jpg);
	background-repeat: no-repeat;
	background-position: left top;
	margin-left: 10px;
}
ul.topNavi li.menubtn_5 a {
	background-image: url(../img/event_over.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}
ul.topNavi li.menubtn_6 a {
	background-image: url(../img/lesson_over.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}

ul.topNavi a:hover img{
	visibility:hidden;
}