.partner{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 35px;
}
.partner h1{
    font-size: 30px;
    text-align: center;
    margin-bottom: 5%;
}
.partner ul{
    width: 100%;
    height: auto;
    display: inline-block;
}
.partner li{

    width: 23%;

    float: left;

    box-shadow: 0 2px 8px 0 rgba(0, 0, 0, .2);

    border-radius: 13px;

    margin-right: 2.6%;

    margin-bottom: 2%;
}
.partner li img{
    width: 87%;
    padding: 15px 10px;
}
.partner li:nth-child(4n) {
    margin-right: 0;
}