.banner_flex_sections{
    display: flex;
    list-style: none;
    width: 90%;
    margin: auto;
    padding: 80px 0;
    margin: 50px auto;
}
.banner_flex_sections li{
    width: 30%;
    margin: 0 1.66%;
    text-align: center;
}
.banner_flex_sections li img{
    width: 80px;
}