.bann {
    width: 1400px;
    height: 700px;
    position: relative;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    margin-top: 30px;
}

.mar-but {
    margin-bottom: 50px;
}

.partner-logo {
    width: 100px;
    height: 100px;
    float: left;
    /* display: flex;
    justify-content: center;
    align-items: center; */
    box-shadow: 2px 2px 4px rgb(180, 180, 180);
    transition: all .4s ease .1s;
    margin-left: 150px;
    /* margin-bottom: 80px; */
    margin-top: 160px;
    text-align: center;
}

.partner-logo:hover {
    margin-top: 120px;
    box-shadow: 5px 5px 15px rgb(180, 180, 180);
}

.partner-logo img {
    width: 100px;
    height: auto;
}