.google_translate img {
filter:alpha(opacity=100);
-moz-opacity: 1.0;
opacity: 1.0;
border:0;
}
.google_translate:hover img {
filter:alpha(opacity=30);
-moz-opacity: 0.30;
opacity: 0.30;
border:0;
}
.google_translatextra:hover img {
filter:alpha(opacity=0.30);
-moz-opacity: 0.30;
opacity: 0.30;
border:0;
}
By Ferramentas Blog