#slides {
    position: relative;
}

#slides:hover a.slidesjs-previous, #slides:hover a.slidesjs-next {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.15);
}

#slides .slidesjs-navigation {
    position: absolute;
    z-index: 100;
    text-align: center;
    width: 40px;
    line-height: 358px;
    opacity: 0;
}

#slides a.slidesjs-previous, #slides a.slidesjs-next {
    color: #FFF;
    text-decoration: none;
    font-size: 20px;
    -webkit-transition:background-color 0.15s ease-in, opacity 0.15s ease-in;
    -moz-transition:background-color 0.15s ease-in, opacity 0.15s ease-in;
    -o-transition:background-color 0.15s ease-in, opacity 0.15s ease-in;
    transition:background-color 0.15s ease-in, opacity 0.15s ease-in;
}

#slides a.slidesjs-previous:hover, #slides a.slidesjs-next:hover {
    background-color: rgba(0, 0, 0, 0.45);
}

#slides .slidesjs-previous {
    top: 1px;
    bottom: 0px;
    left: 0px;
}

#slides .slidesjs-next {
    top: 1px;
    bottom: 0px;
    right: 0px;
}