html {
    cursor: default;
    background-color: #000;
}

body {
    margin:0;
    background-color: #000;
    text-align: center;
    padding-top: 0px;
    overflow: hidden;
}

.presentation {
    width: 100vw;
    height: 100vh;
    padding: 0;
    margin: 0;
}