body {
    background-color: #f8f9fa;
}

.container {
    max-width: 800px;
}

h2 {
    color: #343a40;
}

.btn-primary {
    background-color: #007bff;
    border: none;
}

.btn-secondary {
    background-color: #6c757d;
    border: none;
}

.btn-danger {
    background-color: #dc3545;
    border: none;
}

.table {
    margin-top: 20px;
}

.table thead {
    background-color: #007bff;
    color: white;
}

.table th, .table td {
    text-align: center;
}

img {
    border-radius: 50%;
}

form {
    margin-top: 20px;
}