.showcase
{
    position: relative;
    height: 300px;
    width: 940px;
    margin-top: 5px;
}
.showcase-arrow-previous, .showcase-arrow-next
{
    position: absolute;
    background: url('../images/arrows.png');
    width: 33px;
    height: 33px;
    top: 150px;
    cursor: pointer;
}

.showcase-arrow-previous
{
    left: -40px;
}

.showcase-arrow-previous:hover
{
    background-position: 0px -34px;
}

.showcase-arrow-next
{
    right: -40px;
    background-position: -34px 0;
}

.showcase-arrow-next:hover
{
    background-position: -34px -34px;
}