body {
    background: url(img/login_bg2.jpg);
    background-size: cover;
    font-family: '微软雅黑','雅黑','黑体';
    overflow:hidden;
}

div.app-caption {
    color: #fff;
    font-weight: bold;
    font-size: 2.5em;
    font-weight: bold;
    text-align: center;
    text-shadow: 2px 2px 8px #ccc;
    padding: 2em 0 0;
}

div.app-caption-sub {
    color: #fff;
    font-weight: bold;
    font-size: 2em;
    letter-spacing: 0.1em;
    font-weight: bold;
    text-align: center;
    text-shadow: 2px 2px 8px #ccc;
}

.form-signin {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    margin-left: -200px;
    margin-top: -150px;
    padding: 10px 30px 0px 30px;
    background: #868b9b;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    border: solid 1px #ccc;
    box-shadow: 0 0 100px rgba(0, 0, 0, .6);
}
ul.nav-tabs {
    margin-top: 10px;
    padding-left: 10px;
}
    ul.nav-tabs a {
        color:#000;
        font-size: 1.2em;
        text-shadow: 2px 2px 4px #ccc;
    }
    ul.nav-tabs li.active a{
        font-weight:bold;
    }
.tab-pane {
    padding-top: 1em;
    padding: 10px 30px 0px 30px;
}

.form-signin-heading {
    margin-bottom: 10px;
    padding: 0.5em 0 0.2em 0;
    text-align: left;
    font-size: 24px;
    font-weight: bold;
    text-shadow: 2px 2px 4px #f4f4f4;
}

.form-signin .btn {
    margin-bottom: 20px;
}

div.alert {
    margin-bottom: 20px;
    cursor: pointer;
}

div.copy-right {
    color: #fff;
    text-shadow: 3px 3px 6px #000;
    padding-bottom:1em;
}

div.input-group {
    margin-bottom: 10px;
}

.code-container {
    position: relative;
}

    .code-container img {
        position: absolute;
        top: 1px;
        right: 1px;
        z-index: 50;
    }

.tip-txt {
    font-size: 1em;
    line-height: 1.5em;
    text-shadow: 1px 1px 1px #666;
    /*padding: 1em 0 1.5em 0;*/
}
.tip-txt b{
    display:block;
    margin-bottom:1em;
}