.quem-usa a.prev, 
.quem-usa a.next {
    background: url(../images/nav.png) no-repeat transparent;
    width: 40px;
    height: 40px;
    display: block;
    position: absolute;
    margin: -20px 0 0;
    top: 50%; 
    z-index: 10; 
    cursor: pointer; 
}
.quem-usa a.prev {            
    left: 0px; 
}
.quem-usa a.prev:hover {      
    background-position: bottom left; 
}
.quem-usa a.prev.disabled {   
    background-position: 0 -100px !important;  
}
.quem-usa a.next {
    background-position: top right; 
    right: 0px;
}
.quem-usa a.next:hover {      
    background-position: bottom right; 
}
.quem-usa a.next.disabled {   
    background-position: -50px -100px !important;  
}
.quem-usa a.prev.disabled, 
.quem-usa a.next.disabled {
    cursor: default;
}
/*
.quem-usa a.prev span, 
.quem-usa a.next span {
    display: none;
}

.quem-usa a.prev, .quem-usa a.next {
    width: 40px;
    height: 40px;
    display: block;
    position: absolute;
    z-index: 9999;
    background-image: url('../images/nav.png');
}

.quem-usa a.prev:hover, .quem-usa a.next:hover{
    background-position-y: 100%;
}

.quem-usa a.prev{
    margin: 48px 0px 0px 0px;
    background-position: 0% 0%;
}

.quem-usa a.next{
    margin: 48px 0px 0px 917px;
    background-position: 100% 0%;   
}*/
#carousel-clientes img {
    display: block;
    float: left;
}

ul.clientes {
    text-align: center;
}
ul.clientes li {
    margin: 0;
    width: 150px;
    height: 50px;
    overflow: hidden;
}
ul.clientes li div.item   {
    position: relative;
    margin: 0 auto;
    opacity: .5; /* Standards Compliant Browsers */
    filter: alpha(opacity=5); /* IE 7 and Earlier */
    /* Next 2 lines IE8 */
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=50);
    background-repeat: no-repeat;
    background-position: top center;
    /*width: 150px;*/
}
ul.clientes li:hover div.item {    
    opacity: 1; /* Standards Compliant Browsers */
    filter: alpha(opacity=10); /* IE 7 and Earlier */
    /* Next 2 lines IE8 */
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
    filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    background-position: center 100% ; 
}