.cabecera{
    background-image: url(../assets/image/fondoheader.webp);
    background-position: top;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}

.fondoweb{
 background-image: url(../assets/image/fondo2.webp);
    background-position: top;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;   
}