.home-background {
    width: 100%;
    height: 90%;
    /*background-color: #424242;*/
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.language-selection-container {
    width: 100%;
    height: 10%;
}

.language-selection {
    float: right;
    padding: 10px 20px 0 0;
}

.language-text {
    color: whitesmoke;
}

.center {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 80%;
    /*background-color: #2A2A2A;*/
}

.header {
    display: flex;
    align-items: center;
    text-align: center;
    font-weight: 300;
    font-size: 32px;
    /*color: whitesmoke;*/
    height: 10%;
}

.buttons-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: row;
    padding-bottom: 20px;
    width: 60%;
    
    min-height: 300px;
}

.error-message {
    height: 15%;
    color: red;
    font-size: 24px;
}

.update-container {
    display: none;
}

.new_version_tip {
    height: 5%;
    color: indianred;
    font-size: 12px;
    animation: blinker 1s linear infinite;
}
@keyframes blinker {
    50% { opacity: 0; }
}

.login-dark {
    height: 100%;
    background: #475d62 url(/img/star-sky.jpg);
    background-size: cover;
    position: relative;
}

    .login-dark #span {
        max-width: 500px;
        width: 90%;
        background-color: #1e2833;
        padding: 40px;
        border-radius: 4px;
        transform: translate(-50%, -50%);
        position: absolute;
        top: 50%;
        left: 50%;
        color: #fff;
        box-shadow: 3px 3px 4px rgba(0,0,0,0.2);
    }

    .login-dark .illustration {
        text-align: center;
        padding: 15px 0 20px;
        font-size: 100px;
        color: #2980ef;
    }

    .login-dark #span .form-control {
        background: none;
        border: none;
        border-bottom: 1px solid #434a52;
        border-radius: 0;
        box-shadow: none;
        outline: none;
        color: inherit;
    }

    .login-dark #span .btn-primary {
        background: #214a80;
        border: none;
        border-radius: 4px;
        padding: 11px;
        box-shadow: none;
        margin-top: 26px;
        text-shadow: none;
        outline: none;
    }

        .login-dark #span .btn-primary:hover, .login-dark #span .btn-primary:active {
            background: #214a80;
            outline: none;
        }

    .login-dark #span .forgot {
        display: block;
        text-align: center;
        font-size: 12px;
        color: #6f7a85;
        opacity: 0.9;
        text-decoration: none;
    }

        .login-dark #span .forgot:hover, .login-dark #span .forgot:active {
            opacity: 1;
            text-decoration: none;
        }

    .login-dark #span .btn-primary:active {
        transform: translateY(1px);
    }

    .login-dark #span .info {
        display: block;
        text-align: left;
        font-size: 12px;
        color: #6f7a85;
        opacity: 0.9;
        text-decoration: none;
    }

    .login-dark #span .error-message {
        display: block;
        text-align: center;
        font-size: 16px;
        color: orangered;
        opacity: 0.9;
        text-decoration: none;
    }