@charset "utf-8";
/* CSS Document */


/* container *
****************************************/
/* advent *
****************************************/

.mainbord {
	margin: 0px auto;
	width: 900px;
	overflow: hidden;
}

.gakken_logo {
	width: 900px;
	text-align: center;
	overflow: hidden;
}

.mainbord > img {
	float: left;
	margin: 0px;
	padding: 0px;
	display: block;
}


/* RWD --------------------------------------------------------*/
@media screen and (min-width: 750px) and (max-width: 1023px) {
	.mainbord,
	.gakken_logo  {
		width: 600px;
	}
}/* END min-width 750px and max-width 1023px */

@media screen and (max-width: 749px) {
	.mainbord,
	.gakken_logo  {
		width: 300px;
	}
}/* END min-width 850px and max-width 1023px */
/* END RWD -----------------------------------------------------*/