.tx-felogin-pi1 fieldset > div {
    margin-bottom:5px;
    font-weight:bold;
}
.tx-felogin-pi1 fieldset label {
    display:none;
}
.tx-felogin-pi1 fieldset {
     margin-top:10px;
}
.tx-felogin-pi1 fieldset legend {
    display:none;
}