Top Justify Poster Image Text

Hi,

I have a couple of things I would like to do in terms of text overlays on an image. I am using standard image blocks with the "Poster" configuration to allow text overlays. In order of importance, I would like to do the following:

1) I would like to "Top Justify" the text that overlays three images on my site. As you can see in the screenshot below, they are being forced to the center of the image blocks. 

2) I would like to increase the size of the font that displays the pricing at the bottom. I am able to make it bold, but I don't have many styling options other than that. Essentially, Squarespace only allows a Title and Subtitle font to be included natively.

3) I would love a way to add some whitespace (You'd think a simple spacer would be easy to add to an overlay). For example, some space between the description of services and the price/buy now button. Simply hitting enter allows you to preview how this would look in the editor, but once you save it automatically removes this whitespace. 

Are these edits possible to do?

Thanks in advance to anyone who can help/offer advice. 

You can do with custom CSS, but you should share link to these image in your site first.