.has-error .form-control {
    border-color: #dc3545;
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
}
.form-control-feedback {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2;
    display: block;
    width: 34px;
    height: 34px;
    line-height: 34px;
    text-align: center;
    pointer-events: none;
}
.help-block {
    display: block;
    margin-top: 5px;
    margin-bottom: 0;
    color: #dc3545;
    font-size: 80%;
    width: 100%;
}
.help-block .list-unstyled{margin-bottom: 0;}