body {
    font-family: Arial, sans-serif;
    padding: 20px;
}
.card-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.card {
    border: 1px solid #333;
    padding: 10px;
    border-radius: 8px;
    background-color: #f9f9f9;
    width: 120px;
    text-align: center;
    height: 120px;
    position: relative;
}
.symbol {
    margin: 5px;
    font-size: 18px;
    position: absolute;
}