Non esiste opacity nel css.
La parte rigurdante lo showslide nel css è la seguente, ma credo che il problema sia in un file js chiamato slideshow.js.....purtroppo di javascript non mi intendo molto.....
/****SLIDE*********/
#slideshow-w {
float:left;
width:926px;
height:574px;
background: url(../images/slideshow.png) 0 0px no-repeat;
margin-top:0px;
margin-left:10px;
}
#slideshow {
float:left;
width:857px;
height:394px;
position:relative;
background:transparent;
margin-top:51px;
margin-left:42px;
}
.slideshowlite {
float:left !important;
width: 857px;
height: 394px;
padding:0;
margin:0;
;
}
.slideshowlite a {
position:absolute;
left:0;
z-index: 5;
text-align:left;
}
.slideshowlite img {
border: none;
z-index:3;
margin:0;
padding:0;
}
.slideshowlite ul {
position: absolute;
margin-top: 420px;
left:350px !important;
z-index: 9;
list-style-type:none;
background: transparent;
width:123px;
height:50px;
}
.slideshowlite ul li,
.slideshowlite ol li {
float: left;
width: 33px;
padding: 0 2px 0 2px;
margin:0;
list-style-type:none;
border:none !important;
}
.slideshowlite ul li a {
background: url(../images/bg-slide.jpg) 0 0 no-repeat;
position: relative;
display: block;
width: 33px !important;
height: 36px !important;
float: left;
/* line-height: 31px; */
text-decoration: none;
text-align: center !important;
font-size: 13px;
font-weight: bold;
color: #fff !important;
border:none !important;
padding-top:10px;
}
.slideshowlite ul li a.current {
background: url(../images/bg-slide-hover.jpg) 0 0 no-repeat;
color: #ffffff !important;
}
.slideshowlite ul li a:hover {
color: #ffffff !important;
background: url(../images/bg-slide-hover.jpg) 0 0 no-repeat;
}
.slideshowlite ol {
display: none;
}