.auto-slider_123{
    position: relative;
    box-sizing: content-box;
    display: inline-block;
    padding: 10px 10px 20px;
    background: #fff;
    /*max-width: 720px;*/
    margin: 0 auto;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 1px 1px 6px rgba(0, 0, 0, 0.4);
 
}

div#slider_123 { overflow: hidden; }
div#slider_123 figure img { width: 33.33%; float: left; }
div#slider_123 figure { 
    position: relative;
    width: 300%;
    margin: 0;
    transform: translateX(0);
    will-change: transform;
    text-align: left;
    font-size: 0;
    animation: 25s sliding ease infinite; 
}

/* Ensure images keep their intrinsic aspect ratio and avoid layout shift */
div#slider_123 figure img { height: auto; display: block; }

/* Slider indicator */
/*.indicator{
    width: 100%;
    max-width: 720px;
    height: 6px;
    background: #e41b17;
    position: absolute;
    bottom: 0;
    
    animation: indicating 5s ease infinite; 
    
}*/
@keyframes sliding{
            0% { transform: translateX(0); }
            33.333% { transform: translateX(-33.333%); }
            66.666% { transform: translateX(-66.666%); }
            100% { transform: translateX(0); }
        }
        
@keyframes indicating{
            from{
                left: -100%;
            }
            to{
                left: 0;
            }
}