.j-slider-content {
    position: relative;
    width: 800px;
}
.j-slider-box {
    width: 100%;
    overflow: hidden;
}
.j-slider-box .j-slider {
    -webkit-transition: all .3s;
    -moz-transition: all .3s;
    -ms-transition: all .3s;
    -o-transition: all .3s;
    transition: all .3s;
}
.j-slider-box .j-slider li {
    float: left;
    width: 800px;
}

.j-slider-content .slider-btn {
    position: absolute;
    top: 50%;
    -webkit-transform: translateY(-50%);
    -moz-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    -o-transform: translateY(-50%);
    transform: translateY(-50%);
    z-index: 100;
    -webkit-filter: grayscale(100%);
    filter: grayscale(100%);
    cursor: pointer;
}
.j-slider-content .slider-btn:hover {
    -webkit-filter: grayscale(0);
    filter: grayscale(0);
}
.j-slider-content .prev {
    left: -50px;
}
.j-slider-content .next {
    right: -50px;
}