#login_container {
    position:relative;
	width:100%;
	height:100%;
	min-height: 700px;
	background-image:url('../images/login/login_bg.gif');
	background-size:cover;
	background-repeat:no-repeat;
	background-position:center center;
    overflow: auto;
	display: flex; align-items: center; justify-content: center;
}

#login_box {
	width: 70%;
	height: 80%;
	min-width: 300px;
	min-height: 500px;
	max-width: 500px;
	max-height: 400px;
    background-color: rgba(240,240,240,1);
	border: 1px solid #2d353c;
    border-radius: 10px;
	display: flex; align-items: center; justify-content: center;
}

#btn_login {
	padding: 15px 50px;
	font-size: 16px;
	background-color: #2980b9;
}