body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

button {
    padding: 10px 20px;
    background-color: #5cb85c;
    color: white;
    border: none;
    cursor: pointer;
}

table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
}

th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f2f2f2;
}