.h5p-question-image-scalable > img{
    transition: all .3s !important;
}

.h5p-question-image-fill-width .h5p-question-image-scalable > img{
    transition: all .3s !important;
}

.h5p-question-image-scalable{
    transition: all .3s !important;
}

.h5p-question-image-fill-width .h5p-question-image-scalable{
    transition: all .3s !important;
}