body {
    display: flex; 
    flex-direction: column;
    align-items: center;
}

.ovning {
    display: flex;
    flex-direction: column;
    width: 100%;
    align-items: center;
}

.ovning-a table {
    margin: 4em;
    text-decoration: underline;
}

.ovning-a th {
    padding: 0 2em;
}

.ovning-a-left {
    text-align: end;
}

.ovning-a-right {
    text-align: start;
}

.ovning-b table {
    margin: 4em;
}

.ovning-b img {
    width: 12em;
    height: auto;
}

.ovning-c table {
    height: 12em; 
    width: 12em;
    border: 1px black solid;
}

.ovning-c td {
    border: 1px black solid; 
}