#content {
    margin: 70px auto 0 auto;
    width: 700px;
}

table#sp {
    margin: 40px 0 60px 0;
    border: 2px solid #ddd;
}

table#sp a {
    font-weight: bold;
    text-decoration: none;
}

table#sp th, table#sp td {
    vertical-align: middle;
    padding: 10px 20px;
}

#edclave {
    width: 200px;
    height: auto;
}

#edclave:hover {
    opacity: 0.7;
}