.main-head{
    height: 150px;
    background: #FFF;

}

.logo-img {
  max-width: 80%;
  max-height: 30vh;
}

.bg-img {
    opacity: .25;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    position: fixed;
    top: 0;
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    transition: opacity .5s;
    background: url("/static/img/winter-schnee-alpen-cloud-natur.jpg");
}

.sidenav {
    height: 100%;
    overflow-x: hidden;
    padding-top: 20px;
}


.main {
    overflow-x: scroll;
    padding: 0px 10px;
    background-color: #fff;
    background-attachment: fixed;
}

@media screen and (max-height: 450px) {
    .sidenav {padding-top: 15px;}
}

@media screen and (max-width: 450px) {
    .login-form{
        margin-top: 10%;
    }

    .register-form{
        margin-top: 10%;
    }
}

@media screen and (min-width: 768px){
    .main{
        margin-left: 40%;
        min-height: 100vh;
    }

    .sidenav{
        width: 40%;
        position: fixed;
        z-index: -1;
        top: 0;
        left: 0;
    }
}


.login-main-text{
    margin-top: 20%;
    padding: 60px;
    color: #fff;
}

.login-main-text h2{
    font-weight: 300;
}

.btn-black{
    background-color: #000 !important;
    color: #fff;
}

pre {
    background-color: #E8EFEF;
    font-size: 10pt;
    font-family: 'Courier New', monospace;
    padding: 1em;
    word-wrap: anywhere;
}