body {
    background-color: black;
    font-family: serif;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

a {
    color: white;
}

h1 {
    color: white;
    font-size: 4.5rem;
    margin-top: 0;
    font-weight: 700;
}

#cat {
    width: 300px;
    border: solid;
    border-color: white;
    border-width: 3px;
    padding: 5px;
    margin-bottom: 10px;
}

#container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}