main {
    width: 50%;
    margin: 50px auto;
    text-align: center;
}

table {
    margin: 50px auto;
}

table, th, td {
    border-collapse: collapse;
    border: 1px solid #000;
}

th, td {
    padding: 5px;
}


footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #bf5f6ea1;
    color: white;
    font-family: system-ui;
    font-weight: 400;
    font-size: medium;
}