html {
    background-color: rgba(0, 0, 0, 0);
    background-repeat: no-repeat;
    background-image: url("../img/background_datamax.jpg");
    background-size: cover;
    background-position: right center;
    width: 100%;
    height: 100%;
    opacity: 1;
    z-index: -1;
    overflow: hidden;
}

img {
    display: block;
    margin: auto;
    width: 100%;
    height: auto;
}

#welcome-button {
    cursor: pointer;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 30px;
    margin: auto;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(3,3,3,.8);
    overflow: hidden;
    opacity: 0.7;
    box-shadow: 10px 10px 30px #000;
    display:none;
}

#loginForm {
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
}

/* Login container */
#login-container {
    position: absolute;
    padding: 10px;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: fit-content;
    height: fit-content;
    border-radius: 5px;
    /*background: rgba(3,3,3,0.25);*/
    box-shadow: 1px 1px 50px #000;
    opacity: 1;
    /*display: none;*/
}

.close-btn {
    position: absolute;
    cursor: pointer;
    font-family: 'Open Sans Condensed', sans-serif;
    line-height: 18px;
    top: 3px;
    right: 3px;
    width: 20px;
    height: 20px;
    text-align: center;
    border-radius: 10px;
    opacity: .2;
    -webkit-transition: all 2s ease-in-out;
    -moz-transition: all 2s ease-in-out;
    -o-transition: all 2s ease-in-out;
    transition: all 0.2s ease-in-out;
}

    .close-btn:hover {
        opacity: .5;
    }