.vtx-ui-input-error,.vtx-ui-input-normal{
    display: inline-block;
    position: relative;
    padding-bottom: 18px;
}

.vtx-ui-input-error{
    input{
        border-color: red;
    }
    &:after{
        content:attr(data-errormsg);
        color: red;
        display: block;
        font-size: 10px;
        line-height: 18px;
        height: 18px;
        position: absolute;
        left: 0;
        bottom: 0;
    }
}