span.arrow {
    margin-left: 6px;
    height:17px;
}
label.error {
    height:17px;
    border:0;
    font-weight: bold;
    margin-left:9px;
    padding:1px 5px 0px 5px;
    font-size:small;
    color: #ff8282;
    display:block;
}
.is-invalid{
    border:1px solid #ff8282;
}
.is-valid{
    border:1px solid #e6e6e6;
}