.spritew1 {
    background-image: url('/imagenes/detalles-rollups.webp');
    background-repeat: no-repeat;
    background-size: 1440px 2000px; 
    will-change: background-position;
    margin: 0 auto;
}

.spritew1-1, .spritew1-2, .spritew1-3, .spritew1-4,
.spritew1-5, .spritew1-6, .spritew1-7, .spritew1-8,
.spritew1-9, .spritew1-10, .spritew1-11, .spritew1-12 { 
    width: 360px;
    height: 500px;
}

/* Sprites en la parte superior de la imagen (1440x500px) */
.spritew1-1 { background-position: 0 0; }
.spritew1-2 { background-position: -360px 0; }
.spritew1-3 { background-position: -720px 0; }
.spritew1-4 { background-position: -1080px 0; }


.spritew1-5 { background-position: 0 -500px; }
.spritew1-6 { background-position: -360px -500px; }
.spritew1-7 { background-position: -720px -500px; }
.spritew1-8 { background-position: -1080px -500px; }


.spritew1-9 { background-position: 0 -1000px; }
.spritew1-10 { background-position: -360px -1000px; }
.spritew1-11 { background-position: -720px -1000px; }
.spritew1-12 { background-position: -1080px -1000px; }