.myTable {
    border-collapse:collapse;
    border: 1px solid;
}
td {
    border: 1px solid;
    padding: 10px;
}
th {
    border: 1px solid;
    padding: 5px;
}
h1, h2 {
    text-align: center;
}
del {
    color: red;
}

ins {
    color: green;
    font-weight: bold;
}