body {
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 50px;
}

#lotto-numbers {
    display: flex;
    margin-top: 30px;
}

.ball {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 20px;
    font-weight: bold;
    margin: 0 5px;
}

.ball.yellow { background-color: #fbc400; }
.ball.blue { background-color: #69c8f2; }
.ball.red { background-color: #ff7272; }
.ball.gray { background-color: #aaa; }
.ball.green { background-color: #b0d840; }