HTML,
body {
    width: 100%;
    height: 100%;
    margin: 0px;
    border: 0;
    overflow: hidden;
    /*  Disable scrollbars */
    display: block;
    /* No floating content on sides */
}

.container {
    position: relative;
}

#overlay {
    position: fixed;
    display: inline;
    left: 0; 
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.7);
    color: black;
    padding: .8rem;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 2vh;
}

p {
    margin-bottom: 0;
    margin-top: 0;
}