* {
    margin: 0;
    padding: 0;
}

.contentl {
    width: 100%;
    height: 670px;
    position: relative;
    overflow: hidden;
    margin: 0 auto;
}

.wrapper {
    width: 400%;
    height: 100%;
    margin: 0;
    padding: 0;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    transition: none;
}

.wrapper li {
    flex: 1;
    list-style: none;
    margin: 0;
    padding: 0;
}

.wrapper li img {
    width: 100%;
    height: 100%;
}

.radius {
    height: 12px;
    margin: 0;
    padding: 0;
    position: absolute;
    bottom: 10px;
    left: 10px;
    display: flex;
    align-items: center;
    left: 50%;
    margin-left: -20px;

}

.radius li {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: yellow;
    opacity: 0.6;
    margin: 0 3px;
    padding: 0;
    list-style: none;
    position: relative;
    bottom: 10px;
    text-align: center;
    line-height: 30px;
    font-weight: 600;
}

.radius-active {
    opacity: 1 !important;
    border: 2px solid rgb(255, 255, 255, 0.5);
    background-clip: padding-box;
}

.prev {
    width:50px;
    height: 50px;
    margin-left: 20px;
    border-radius:50px;
    line-height: 45px;
    text-align: center;
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -17px;
    background-color: darkgray;
    font-weight: 900;
    opacity: 0;
}

.next {
    width:50px;
    height: 50px;
    border-radius:50px;
    line-height: 45px;
    text-align: center;
    position: absolute;
    right: 0;
    top: 50%;
    margin-top: -17px;
    background-color: darkgray;
    opacity: 0;
    font-weight: 900;
    margin-right: 20px;
}
.banner {
    background: none;
}
.prev span,
.next span {
    font-weight: bold;
    color: white;
    font-size: 40px;
}