* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
}

.hide {
    display: none;
}

#slider {
    position: relative;
    overflow: hidden;
    margin: 0px auto 0;
}

.slider-ul {
    position: absolute;
    width: 999999999px;
    height: 100%;
}

.slider-ul-li {
    width: 520px;
    height: 100%;
    display: inline-block;
}

.slider-ul-li-a, .slider-ul-li-a-img {
    display: inline-block;
    width: 100%;
    height: 100%;
}

.slider-circlex {
    position: absolute;
    bottom: 20px;
    right: 0;
    left: 0;
    text-align: center;
}

.slider-circlex-ul {
    display: inline-block;
    border-radius: 8px;
    background-color: red;
    background: rgba(0, 0, 0, 0.3);
    padding: 2px;
    font-size: 0;
}

.slider-circlex-ul-li {
    display: inline-block;
    width: 7px;
    height: 7px;
    background-color: #FFF;
    border-radius: 50%;
    margin: 0 4px;
    cursor: pointer;
}

    .slider-circlex-ul-li.active {
        background-color: rgba(0, 255, 13);
    }

.slider-btn {
    position: absolute;
    top: 50%;
    right: 0;
    left: 0;
    margin-top: -15px;
}

    .slider-btn a {
        position: absolute;
        width: 30px;
        height: 30px;
        text-align: center;
        cursor: pointer;
        background-color: rgba(0, 0, 0, .5);
    }

.slider-btn-next {
    right: -5px;
    border-radius: 50% 0 0 50%;
}

.slider-btn-prev {
    left: -5px;
    border-radius: 0 50% 50% 0;
}

.slider-btn-prev-span, .slider-btn-next-span {
    display: inline-block;
    width: 10px;
    height: 20px;
    margin-top: 4px;
    position: relative;
}

    .slider-btn-prev-span::after, .slider-btn-next-span::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 7px;
        height: 7px;
        margin-top: -3.5px;
    }

    .slider-btn-prev-span::after {
        border-left: 2px solid #FFF;
        border-top: 2px solid #FFF;
        transform: rotate(-45deg);
        margin-left: -2px;
    }

    .slider-btn-next-span::after {
        border-right: 2px solid #FFF;
        border-bottom: 2px solid #FFF;
        transform: rotate(-45deg);
        margin-left: -7px;
    }