.clients ul{
    width: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    align-items: center;
    justify-content: space-evenly;
    margin-top: -15px;
}

.clients img{
    height: 80px;
    opacity: .7;
    margin: 15px;
}