.main_clients_list.clients_corp ul {
    margin:0;
    padding:0;
    list-style-type: none;
}
.main_clients_list.clients_corp li {
    display:inline-block;
    width:32%;
    vertical-align: middle;
    text-align: center;
}
.main_clients_list.clients_corp li > div {
    height:86px;
    line-height:86px;
}
.main_clients_list.clients_corp li img {
    max-width:98%;
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: grayscale(100%);
    filter: gray; /* IE 6-9 */
}
.main_clients_list.clients_corp li:hover img {
    -webkit-filter: none;
    -moz-filter: none;
    -ms-filter: none;
    -o-filter: none;
    filter: none;
    filter: none; /* IE 6-9 */
}
.main_clients_list.clients_corp .detail_link {
    display:block;
    text-align:center;
    font-size:12px;
    margin-top:5px;
}