.footer {
    border-top: 2px solid #333;
    background-color: grey;
    padding: 10px;
    text-align: center;
    position: fixed;
    bottom: 0;
    width: 100%;
    left: 0px;
    height: 20%;
}

.button-footer
{
    margin: 5px 15px 5px 15px;
    padding: 5px 15px 5px 15px;
}

/* ChatGPT */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 80%;
    margin-bottom: 10%;
}

h1 {
    margin-bottom: 20px;
    text-align: center;
    color: #4CAF50;
}

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

th, td {
    padding: 12px 15px;
    text-align: left;
    white-space: nowrap;
}

thead {
    background-color: #4CAF50;
    color: white;
}

tbody tr:nth-child(even) {
    background-color: #f2f2f2;
}

tbody tr:hover {
    background-color: #e9e9e9;
}

th {
    background-color: #4CAF50;
    color: white;
}

td {
    border-bottom: 1px solid #ddd;
}

.error {
    background-color:red
}