.icon-asterisk-invalid {
    display: none !important;
}

span.z-decorator span.invalid,
input:invalid + .z-decorator > .invalid,
textarea:invalid + .z-decorator > .invalid,
select:invalid + .z-decorator > .invalid {
    visibility: hidden;
}

input:invalid:hover + .z-decorator > .invalid,
textarea:invalid:hover + .z-decorator > .invalid,
select:invalid:hover + .z-decorator > .invalid {
    visibility: visible;
}

span.z-decorator {
    display: block;
    position: absolute;
    z-index: 20;
}