.fieldset {
    padding-top: 15px;
}

.fieldset__legend {
    font-size: 15px;
    font-weight: 600;
}
@media only screen and (max-width: 600px){
.fieldset {
    padding-top: 90px;
}

.fieldset__legend {
    font-size: 15px;
    font-weight: 600;
}
}