table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}
table th, table td {
    padding: 8px;
    border: 1px solid #ccc;
    text-align: left;
}
.delete-participant {
    background-color: #ff0000;
    color: #fff;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
}