* {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}

body {
    font-family: arial, 微軟正黑體, sans-serif ;
    margin         : 0 ;
    padding        : 0 ;
    font-size      : 22px ;
    text-decoration: none ;
    list-style     : none ;
}

#background_img {
	-moz-background-size:contain;
	-webkit-background-size:contain;
	-o-background-size:contain;
	position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: 100% 100%;
    opacity: 0.6;
    filter:alpha(opacity=60);
    background-image: url("../img/bg.jpg") ;
	z-index: -2 ;
}

.login_container {
    margin: 10% auto auto 35% ;
    width: 40%;
    height: 30%;

}

.form-group {
    text-align: center ;
}

.titleword {
    color: white ;
}

.leftgroup {
    margin-left: 50px ;
}

.inputtxt {
    width: 100px ;
}

.logimg {
	-moz-background-size:contain;
	-webkit-background-size:contain;
	-o-background-size:contain;
	position: relative;
    top: 0;
    left: 0 ;
    width: 500px;
    height: 300px;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: 100% 100%;
    opacity: 0.8;
    filter:alpha(opacity=80);
	z-index: -1;
	padding-bottom: 10px ;
}

#errMessage {
	display: none ;
	margin: auto ;
	text-align: center ;
}