如何使用html和css单击按钮图像来获取按钮图像源

I created a gallery with buttons using html and css. Currently started learning javascript, so hoping this can be done without it. I'm trying to open a full screen image in a new window once the button is clicked. I'm trying to make the source of each button appear on the new window once the button is clicked. I have over 50 button images, so I was wondering if there's a way to get the source of each image that is clicked and opened full screen on the new window.I created a gallery with buttons using html and