You can also use this instruction to make the image banner clickable for other Shopify's free themes.
Required: You must add a link to the button link of your banner.
Please follow the step-by-step instructions below to do it.
Banner Without button and texts
Go to your Online store > Themes > Edit code.
In Assets folder, open base.css file
Copy this code below, add it at the bottom of base.css file and save the file
.banner__buttons .button,
.banner__buttons,
.banner__box,
.banner__content {
width: 100%!important;
height: 100%!important;
max-width: 100%!important;
padding: 0!important;
position: absolute!important;
top: 0px;
left: 0px;
opacity: 0;
bottom: 0px;
right: 0px;
margin: 0px !important; }
You can check the preview result from this link.
Store URL: https://shopofy20.myshopify.com
Password: lovetoshare
I hope my solution worked well for you!