.board {
    margin: auto;
    width: 400px;
    border: 5px solid #6e421d;
    display: grid;
    grid-template-columns: repeat(8, 50px);
}

.square {
    width: 50px;
    height: 50px;
    display: inline-block;
}

.light {
    background-color: #f0d9b5;
}

.dark {
    background-color: #b58863;
}

.green {
    background-color: rgba(0, 128, 0, 0.404);
}

.piece {
    margin: 10%;
    width: 70%;
    height: 70%;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
}

.black {
    background-color: #c40003;
    border: solid #800103;
    color: #f0d9b5;
}

.white {
    background-color: #345;
    border: solid rgb(31, 41, 51);
    color: #f0d9b5;
}

header {
    text-align: center;
}

main {
    text-align: center;
}

#error {
    color: #d41d20;
    text-align: center;
    padding: 10px;
}