body {
    background-image: url("Media/serixbackground.jpg");
    background-repeat: no-repeat;
    background-position: center top;
    background-size: cover;
    height: 100vh;    
    font-family: 'Economica', sans-serif;
    color: #ffffff;
    /*Font size base value, all other font sizes are relative to this*/
    font-size: 16px;
    margin: 0;
}

#header {
    margin-top: 5vh;
    text-align: center;
}

    #header h1 {
        font-size: 300%;
        cursor: default;
    }

#stealthBox {
    position: fixed;
    top: 0;
    /*15px comes from the box width/2*/
    left: calc(50vw - 15px);
    width: 30px;
    height: 30px;
    cursor: pointer;
}

#body {
    text-align: center;
    margin-top: 18vh;
}

    #body a {
        color: inherit;
        text-decoration: none;
    }

#log-in {
    /*margin-bottom: 4vh;*/
}

.btn {
    border-radius: 5px;
    border-width: 0;
    box-shadow: 0 2px 5px #2d2d2d;
    background-color: #0071BC;
    width: 30vw;
    padding: 0.5em 1.5em 0.5em 1.5em;
    font-size: 220%;
    transition: 0.3s all ease-out;
    cursor: pointer;
    color: #ffffff;
    font-family: 'Economica', sans-serif;
}

    .btn:hover, .btn:focus {
        background-color: #027dd0;
        outline: none;
        font-weight: 500;
        box-shadow: 0 4px 10px #2d2d2d;
    }

@media screen and (max-width: 1023px) {
    .btn {
        width: 45vw;
    }
}

@media screen and (max-width: 767px) {
    .btn {
        width: 80vw;
    }
}