.partner {
    max-width: 100%;
    background: url('../img/partners.jpg') no-repeat center top / cover ;
    border-radius: 50px;
    margin: 20px;
}
.partner-content {
    max-width: 1200px;
    margin: 0 auto;
}
.partner h1 {
    padding-top: 30px;
    text-align: center;
    color: #ffffff;
    font-size: 30px;
    padding-bottom: 15px;
}
.partner ul  {
    display: flex;
    justify-content:space-around;
    align-items: center;
    padding-top: 50px;
    padding-bottom: 50px;
}
.partner ul li {
    list-style: none;
    background-color: #ffffff;
    width: 250px;
    height: 110px;
    padding: 10px;
    box-shadow: 0 0 10px rgb(0, 0, 0, 0.5);
    transition: 0.3s all;
}
.partner ul li:hover {
    filter: grayscale(0.4);
    box-shadow: 0 0 10px rgb(0, 0, 0, 0.8);
}
.partner ul li a img {
 
    max-width: 100%;
    margin: 0 auto;
    text-align: center;
}
.partner-content ul {
    padding: 15px 0px;
}
.partner-content ul:last-child {
    padding-bottom: 45px;
}