.main_title {
	width: 100%;
	text-align: center;
	font-size: 28px;
	font-weight: bold;
	color: #000;
	margin: 30px 0;
}
.main_content {
	border: 1px solid #b3d2f1; 
	width: 98%;	
	margin: 30px 1%;
	height: 400px;
}

.div_button {
	text-align: center;
	width: 100%;
	margin-top: 20px;
}
.but_login{background:url(../images/but_login.gif);width:196px;height:47px;border:none;cursor:pointer}
.but_new{background:url(../images/but_new.gif);width:225px;height:35px;border:none;cursor:pointer}
.but_old{background:url(../images/but_old.gif);width:225px;height:35px;border:none;cursor:pointer}