form.solwin {
    margin-top:15px;
}

form.solwin fieldset > .row {
    display: flex;
    flex-wrap: wrap;
    margin:0px -10px;
}

form.solwin fieldset > .row > div {
    flex: 1 1 50%;
    box-sizing: border-box; 
    padding:10px;
}

form.solwin .reference textarea {
    margin-top:30px;
}

form.solwin label span {
    display:none;
}

@media screen and (max-width: 600px) {
    form.solwin fieldset > .row > div {
        flex: 1 1 100%;
    }
}