如何使html div的文本超过图像可下载/可保存的用户?

I have a div that takes a user image and places user text over it. My goal is for the users to, after seeing the preview and customizing the image/text to their like, be able to download or save the image with the click of a button. Is this possible? Here's my code: (I'm new to html/css so please forgive ugly formatting/methods)I have a div that takes a user image and places