form#mygooglecse-form .form-item.form-type-textfield.form-item-parameter {
    position: relative;
}
form#mygooglecse-form span.error-message {
    position: absolute;
    width: 120px;
    left: -142px;
    top: 0;
    background-color: rgba(255,0,0,0.5);
    padding: 5px 8px;
    font-size: 9px;
    border-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    line-height: 12px;
    display: none;
}
form#mygooglecse-form span.error-message:before {
    content: " ";
    position: absolute;
    right: -5px;
    top: 11px;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 5px solid rgba(255,0,0,0.5);
}