To make a component, select the the container 'gallery-wrapper'. You can of course experiment with the width of the containers and also of the images, to make more or less columns. Try to position the images so that the rows, when seen in wide view, are of approximately the same height. If you want a fig-caption for each image, it would be best to place the image and the caption inside its own container. For your own use, please provide your own images.