1KA_F2F/resources/sass/admin_new/components/form/fieldset.scss

fieldset{
    margin-bottom: 32px;
    padding: 32px;
    box-sizing: border-box;

    border: 1px solid $gray;

    legend{
        font-size: 16px;
        font-weight: 700;
        color: $blue;
        text-transform: uppercase;
    }
}