.right-kefu-class {
    position: fixed;
    right: 20px;
    bottom: 100px;
    height: 50px;
    z-index: 999;
    cursor: pointer;
    box-shadow: 0px 0 2px rgba(0,0,0,0.2);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 7px 10px;
    font-size: 15px;
    color: #fff;
    background-color: #4979ff;
    box-sizing: border-box;
    vertical-align: middle;
    width: 138px;
    padding: 13px 10px;
    height: 50px;
}

.right-kefu-class i {
    width: 24px;
    height: 24px;
    background: url("/images/weixin_ic.png") no-repeat;
    background-size: 100% 100%;
    margin-right: 10px;
}

.right-kefu-class span {
    text-align: center;
    font-size: 16px;
    line-height: 24px;
}

.right-kefu-dialog {
    position: fixed;
    right: 20px;
    bottom: 160px;
    width: 240px;
    /* border-radius: 10px; */
    overflow: hidden;
    display: none;
    /* border: 1px solid #f1f1f1; */
    box-shadow: 0px 0 2px rgba(0,0,0,0.2);
    z-index: 999;
    background-color: white;
}

    .right-kefu-dialog img {
        width: 100%;
    }

    .right-kefu-dialog span {
        font-size: 16px;
        line-height: 24px;
    }