.signin-container:before {
    display: block;
    width: 100%;
    margin-top: 100px;
    content: "科研电子数据采集系统（einMatrix）";
    color: #fff;
    text-align: center;
    font-size: 3em;
    padding-top: 10px;
    padding-bottom: 10px;
}

.signin-container {
    background-image: url(www.jpg);
    background-size: cover;
}

.signin-container .signin-incontainer {
    background: rgba(255, 255, 255, .6);
    margin-left:auto;
    margin-right:auto;
    margin-top: 20px;
}

.signin-container .signin-incontainer .signin-title {
    background: #ff9933;
    color: #fff;
    opacity: .8;
}

.signin-container .signin-incontainer .signin-form-container .form-group .login-btn {
    background: #ff9933;
}

.signin-container .signin-incontainer .signin-form-container .form-group .login-btn:hover {
    background: #ee8822;
}

.signin-container .info-box{
    color:#fff;
}