.board {
    margin: auto;
    display: flex;
    flex-wrap: wrap;
    align-content: center;
    justify-content: center;
    border: 2px solid;
    width: 450px;
    height: 380px;
    background-color: blue;
}

.board div {
    border: 2px solid;
    border-radius: 50%;
    margin: 3px;
    height: 50px;
    width: 50px;
    background-color: white;
}

h1, h2, h3 {
    text-align: center;
    font-family: "Lucida Console", Monaco, Monospace;
}

button {
margin-left: 45%;
margin-top: 5%;
}