.containers {  
            position: relative;  
            width: 600px; /* Genişlik ayarı */  
            height: 400px; /* Yükseklik ayarı */  
            overflow: hidden;  
        }  
        .image {  
            position: absolute;  
            width: 100%;  
            height: 100%;  
            transition: 0.5s ease;  
        }  
        .slider {  
            position: absolute;  
            width: 1%;  
            height: 100%;  
            background: red;  
            cursor: ew-resize;  
            z-index: 10;  
        }