Seeking help with code to click anywhere on images to expand to full page

Hello, and thanks for checking this out. This is my retouching portfolio. When you click on a heading, like creative or portraits, etc., the images open small, in a horizontal row you can click through. The website style is Forte. If you hover over an image, a small, thin, barely noticeable plus symbol appears at the top right of the image. Clicking this opens the image to a full page, much larger version. THAT is what I want people to see. However, almost no one sees the plus symbol or knows to click it. I would love, even pay for help with code that works the same way just by clicking ANYWHERE in the image, which people intuitively try. I would think making that symbol super large might work, so no one could miss it? Appreciate anyone's feedback or knowledge. Thanks!

Can you share link to this page? We can check easier

https://www.ronbansak2.com/creative

Here's the link. Thanks!

Try this to Website Tools > Custom CSS

a.icon-resize {
    position: absolute !important;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    color: transparent !important;
}
.ctrl-button.resize {
    top: 0 !important;
    left: 0 !important;
    bottom: 0 !important;
    right: 0 !important;
    color: transparent !important;
    font-size: 0 !important;
}