html, body {
    height: 100%;
}

#slider {
    margin-left: auto;
    margin-right: auto;
    /*margin-top: 2%;*/
    padding: 15px;
    background: #e8e8e8;
    width: 500px;
    height: 100%;
    position: relative;
    overflow: hidden;
    text-align: left;
}

#slider-container {
    width: 1000px;
    height: 100%;
}

#main {
    background: #e8e8e8;
    float: left;
    width: 500px;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.block {
    display: inline-block;
    height: 100%;
}