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

.hide{
    display: none;
}

#slider{
    position: relative;
    overflow: hidden;
    margin: 90px 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;
}