html, body {
    height: 100%;
}
.content {
    width: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.login-box, .register-box {
    max-width: 320px;
}
/*.login-page, .register-page {*/
/*    background: #d2d6de url("__IMG__/backend_bg.jpg") no-repeat;*/
/*    background-size: 100%;*/
/*}*/
.login-box-body, .register-box-body {
    background: rgba(0, 0, 0, .5);
    /*border-radius: 10px;*/
}
.login-box-msg {
    color: #FFF;
    font-size: 18px;
}
.form-control,.input-control-icon-left, .input-control-icon-right, .input-control-label-left, .input-control-label-right {
    height: 38px;
    line-height: 38px;
}
#bg {
    width: 100%;
    height: 100%;
    background: url('/static/images/login_bg.jpg') no-repeat;
    background-size: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    /*-webkit-filter: blur(3px);*/
    /*-moz-filter: blur(3px);*/
    /*-o-filter: blur(3px);*/
    /*-ms-filter: blur(3px);*/
    /*filter: blur(3px);*/
}

#captcha_img {
    position: absolute;
    top: 1px;
    right: 2px;
    width: 100px;
    height: 37px;
    cursor: pointer;
}

#footer {
    position: absolute;
    bottom: 0;
    left: 0;
    text-align: center;
    background: rgba(255, 255, 255, .3);
    width: 100%;
    height: 60px;
    line-height: 60px;
}
#footer a {
    color: #FFF;
}