php, sql, autoit, javascript, c, html

Sets the opacity of an element and its children. Doesn’t validate. Mozilla began supporting the opacity rule in version 1.7, so ‘-moz-opacity’ may not be necessary…

selector {
filter: alpha(opacity=60); /* MSIE/PC */
-moz-opacity: 0.6; /* Mozilla 1.6 and older */
opacity: 0.6;
}

Popularity: 8% [?]