.webform-submission-form fieldset.js-webform-type-fieldset {
    border: 1px solid #ddd !important;
    padding: 20px !important;
    margin-top: 15px;
}

.webform-submission-form legend {
    float: none !important;
    width: auto !important;
    margin-bottom: .5rem !important;
    font-size: inherit !important;
    line-height: inherit !important;
}

.webform-type-fieldset > legend {
    font-weight: bold;
}