Gallery caption alignment

Hello, I would like to center a gallery caption "Baby angry bird" here https://themagicalhook.com/animals/ I tried

figcaption,
.wp-caption .wp-caption-text{	 
    text-align: center !important;
}
 
#content .gallery dd.gallery-caption {
    text-align: center !important;
}

But the first one only centers the image caption not the gallery caption. Any help would be much appreaciated! Thanks. Luis