/*.logo {
    width: 100%;
}
*/
.logo_slider {
    overflow: hidden;
    width: 100%;
    margin: auto;
}

.logo_slider {
    overflow: hidden;
}

    .logo_slider ul {
        margin: 0;
        padding: 0;
        list-style: none;
        display: flex;
        position: relative;
        animation: mymove 20s linear infinite;
    }

    .logo_slider ul li {
        flex-shrink: 0;
        flex-grow: 0;
        display: block;
        margin: 20px;
        width: 280px;
        height: 180px;
        border: 1px solid #ccc;
        /*border-radius: 50%;*/
    }

    .logo_slider ul li a img {
        width: 100%;
    }

/* Safari 4.0 - 8.0 */
@-webkit-keyframes mymove {
    0% {
        left: 0;
    }

    100% {
        left: -100%;
    }
}

/* Standard syntax */

@keyframes mymove {
    0% {
        left: 0;
    }

    100% {
        left: -100%;
    }
}