.contenidoprincipal-upload-img {
    overflow: hidden;
    position: relative;
}

.contenidoprincipal-upload-img input {
    cursor: pointer;
    display: block;
    direction: ltr;
    font-size: 23px;
    margin: 0;
    opacity: 0;
    position: absolute;
    right: 0;
    top: 0;
    transform: translate(-300px, 0px) scale(4);
}