.slideshow_legenda { 
  display: inline-block;
  width: 920px;
  background: #000;
  filter:alpha(opacity=80); /* IE */
  -moz-opacity:0.8; /* Mozilla */
  opacity: 0.8; /* CSS3 */
  margin-top: -120px;
  padding: 0px;
}

.slideshow_legenda_imagem {
  padding: 0px;
  float: right;
  margin: 10px;
}

.slideshow_legenda_titulo {
  padding: 0px;
  color: #FFF;
  margin: 10px;
  float: left;
  font-size: 180%;
}