.poster-main {
    position: relative;

}
.poster-list li{
    box-shadow: 0 0 10px #ddd;
}
.poster-main a, .poster-main img { display: block; width: 100%; height: 100%;}
.poster-main img{ }
.poster-main .poster-list {
    width: 1000px;
    height: 500px;
}

.poster-main .poster-list .poster-item {
    width: 200px;
    height: 500px;
    position: absolute;
    left: 0;
    top: 0;

}

.poster-main .poster-btn {
    position: absolute;
    top: 0;
    cursor: pointer;
    filter: opacity(.5) brightness(1);
}
.poster-main .poster-btn:hover{ filter: opacity(1) brightness(2); }

.poster-main .poster-prev-btn {
    left: 0;
    /*background: url(../images/left.png) no-repeat center center;*/
}

.poster-main .poster-next-btn {
    right: 0;
    /*background: url(../images/right.png) no-repeat center center;*/
}
.poster-item-title{
    font-size: 18px;
    text-align: center;
    line-height: 48px;
    display: block;
}