.vendor_logos ul {
    display: flex;
    /* flex-flow: row wrap; */
    align-items: center;
    justify-content: space-between;
    position: relative;
    padding: 20px 20px !important;
}
.vendor_logos ul > li {
    flex: 1;
    list-style-type: none;
    flex-basis: 20%;
    margin: 10px !important;
}

.vendor_logos ul > li img {
    width: 170px;
}