.slider .next{
    position: relative;
    z-index: 9;
    display: block;
    width: 80px;
    float:left;
}

.slider .prev{
    position: relative;
    z-index: 9;
    display: block;
    width: 80px;
    float:right;
}


.slider ul {
    float:left;
    position: relative;
    margin: 0;
    padding: 0;
    list-style: none;
}

.slider ul li {
    float:left;
    position: absolute;
    display: none;
    margin: 0;
    padding: 0;
}

.slider ul li:first-child {
    display: inline-block;
}