body,html {
    margin: 0;
    padding: 0;
    height: 100%;
} 

.main-content {
    background-image: url('./images/roy.gif');
    background-repeat: no-repeat;
    background-size: 100% 100%;
    width: 98.5%;
    height: 93.5%;
}

.main {
    margin-left: 3%;
    margin-top: 5%;
    width: 80%;
    height: 80%;
    position: fixed;
}

.container {
    background-image: url('./images/windows-desktop.png');
    background-repeat: no-repeat;
    background-size: 100% 100%;
    top: 0px;
    left: 0px;
    height: 100%;
    z-index: -1;
}

.help-window {
    margin-left: 30%;
    margin-top: 20%;
    position: fixed;
    z-index: 100;
}

.hidden {
    display: none;
}

@media only screen and (max-width: 767px) {
    .main-content {
        background-image: url('./images/roy.gif');
        background-repeat: no-repeat;
        background-size: 100% 100%;
        width: 95%;
        height: 92.5%;
    }
    
    .help-window {
        margin-left: 20%;
        margin-top: 10%;
        position: fixed;
        z-index: 100;
    }
}