body {
    font-family: Arial, sans-serif;
    margin: 20px;
}

nav {
    margin-bottom: 20px;
}

form {
    margin-bottom: 20px;
    flex-direction: row;
}

form label {
    display: block;
    margin: 5px 0;
}

form input {
    flex-direction: row;
}

button {
    margin-top: 10px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 8px 12px;
    text-align: left;
}

th {
    background-color: #f4f4f4;
}

td button {
    margin-right: 5px;
}

@media (max-width: 600px) {
    form label, form input, form button {
        width: 100%;
        display: block;
    }

    table {
        width: 100%;
        display: block;
        overflow-x: auto;
    }
}