* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

h3 {
    text-decoration: underline;
}
#logo {
    position: absolute;
    top: 0px;
    left: 10px;
    width: 90px;
    height: 90px;
    overflow: hidden;
}

#img {
    padding-top: 5rem;
    margin-top: 1rem;
    text-align: center;
}

#titleNav {
    text-align: center;
    position: fixed;
    display: flex;
    flex-direction: column;
    top: 0;
    z-index: 1;
    width: 100%;
    background-color: black;
    padding-top: 2rem;
    padding: 2rem;
    color: white;
    font-family: serif;
    font-weight: bold;
    box-shadow: 0rem 0rem 0.1rem black;
}

#content {
    text-align: center;
    padding-top: 2rem;
    padding-bottom: 2rem;
    font-size: 1rem;
    line-height: 1.5rem;
    margin-top: 1rem;
    margin-bottom: 2.5rem;
    font-family: "Geneva", sans-serif;
    color: darkred;
}

#footer { /* footer fixed, always at the bottom */
    position: fixed;
    bottom: 0rem;
    left: 0rem;
    z-index: 1;
    background-color: black;
    color: white;
    width: 100%;
    text-align: center;
    padding: 0.5rem;
    padding-bottom: 1rem;
    margin-top: 2.5rem;
    font-size: 1.5rem;
    font-family: "Geneva", sans-serif;
    color: white;
}