/* CSS Document */

#container{
	display: block;
	background-image: url("../img/teacher/teacher_bg.jpg");
	width:800px;
	height: 500px;
	
	
}

img{
	display: inline-block;
	
	
}

.imgDiv{
	position: relative;
	top:50px;
	display: block;
	width:800px;
	height: 460px;
	overflow-y: auto;
	overflow-x: hidden;
	
	text-align: center;
}

.imgDiv > img{
	position: absolute;
	top:-40px;
	left:-53px;
	margin-left: 53px;
}



#isTabBtnSet{
	position: absolute;
	top:50px;
	left:0px;
	float: left;
	width:50px;
	height: 460px;
	display: block;
	background-image: url("../img/teacher/teacher_bg.jpg");
	background-position: -0px -40px;
	background-repeat: no-repeat;
}
._isTabBtn{
	float:left;
	border:none;
	display: block;
	cursor: pointer;
	background-color: transparent;
	text-indent: -10000em;
	width:50px;
	height: 37px;
}