* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.slider_1 {
    width: 695px;
    height: 440px;
    /* overflow: hidden; */
    position: relative;
    padding: 0 40px;
    margin: 20px auto;
}

.slider-wrapper_1 {
    width: 100%;
    height: 390px;

}

.slider-wrapper_1 img {
    width: 100%;
    height: 100%;
    display: block;
}

.left_button_1 {
    position: absolute;
    top: 140px;
    left: 2px;
}

.left_button_1 button {
    appearance: none;
    width: 38px;
    height: 38px;
    background: #fff;
    cursor: pointer;
    color: #d3dbe4;
    border-style: none;
    font-size: 38px;
    font-weight: bold;
}

.right_button_1 {
    position: absolute;
    top: 140px;
    right: 2px;
}

.right_button_1 button {
    appearance: none;
    width: 38px;
    height: 38px;
    background: #fff;
    cursor: pointer;
    color: #d3dbe4;
    border-style: none;
    font-size: 38px;
    font-weight: bold;

}

.left_button_1 button:hover,
.right_button_1 button:hover {
    background: #f3f5f6
}

.slider-footer_1 {
    height: 50px;
    background-color: #E6E6E6;
    padding: 12px 12px 0 12px;
    /* 绝对定位当爹 */
    position: relative;
}

.slider-indicator_1 {
    /*ul元素*/
    margin: 0 0 0 230px;
    padding: 0;
    list-style: none;
    /* display: flex; */
    /* align-items: center; */


}

.slider-indicator_1 li {
    width: 8px;
    height: 8px;
    margin: 4px;
    border-radius: 50%;
    background: #fff;
    opacity: 0.4;
    cursor: pointer;
    float: left;
}

.slider-indicator_1 li.active {
    width: 12px;
    height: 12px;
    /* opacity是什么意思 */
    opacity: 1;
}