* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: Arial, sans-serif;
    margin: 20px;
}

table {
    border-collapse: collapse;
    margin: 10px 0;
}

table td {
    border: 1px solid #6a0000;
    background-color: rgb(254, 146, 146);
    padding: 5px;
}

.volver-atras {
    background-color: rgb(255, 0, 0);
    color: white;
    border: none;
    padding: 10px 15px;
    text-decoration: none;
    border-radius: 2px;
}

.volver-atras a {
    color: white;
    text-decoration: none;
}