.validate-input {
    position:relative
}

.alert-validate::before {
    content:attr(data-validate);
    position:absolute;
    max-width:70%;
    background-color:#fff;
    border:1px solid #c80000;
    border-radius:2px;
    padding:4px 25px 4px 10px;
    top:50%;
    -webkit-transform:translateY(-50%);
    -moz-transform:translateY(-50%);
    -ms-transform:translateY(-50%);
    -o-transform:translateY(-50%);
    transform:translateY(-50%);
    right:12px;
    pointer-events:none;
    color:#c80000;
    font-size:13px;
    line-height:1.4;
    text-align:left;
    visibility:hidden;
    opacity:0;
    -webkit-transition:opacity .4s;
    -o-transition:opacity .4s;
    -moz-transition:opacity .4s;
    transition:opacity .4s
}

.alert-validate::after {
    content:"!";
    font-size: 16px;
    font-weight:bold;
    font-family:FontAwesome;
    display:block;
    position:absolute;
    color:#c80000;
    font-size:16px;
    top:50%;
    -webkit-transform:translateY(-50%);
    -moz-transform:translateY(-50%);
    -ms-transform:translateY(-50%);
    -o-transform:translateY(-50%);
    transform:translateY(-50%);
    right:18px
}

.alert-validate:hover:before {
    visibility:visible;
    opacity:1
}