#header-presentation {
    width: 100% !important;
}
#header-presentation div.header-presentation-slide-item {
    width: 100% !important; /* jquery cycle override  */
    max-height: 400px;
    overflow: hidden;
}
div.header-presentation-slide-item video{
    min-width: 100%;
    width: auto;
    min-height: 100%;
    height: auto;
    background-size: cover;
    position: relative;
    z-index: 1;
    bottom:250px;
}
#header-presentation-next,
#header-presentation-prev {
    position: absolute;
    top: 50%;
    margin-top: -22px;
    z-index: 5;
    cursor: pointer;
    height:45px;
    width:45px;
    background: url(../images/pager.png) no-repeat;
    opacity: .9;
}
#header-presentation-next {
    right: 20px;
}
#header-presentation-prev {
    left: 20px;
    background-position: right top;
}
#header-presentation-next:hover {
    background-position: left -78px;
}
#header-presentation-prev:hover {
    background-position: right -78px;
}