body {
    font-family: "Roboto", sans-serif;
    background-color: royalblue;
    display: flex;
    justify-content: center;
    text-align: center;
}

h1 {
    color: aliceblue;
}

button {
    padding: .5rem;
}

:popover-open {
    padding: 1rem;
    color: brown;
    border: 1px solid black;
    border-radius: 3px;
    box-shadow: 5px 5px 5px black;
}