Before I get started let me just say that I haven't used Webflow since 2013 and a lot has changed.
Anyway I decided to try using Webflow for a recent project - http://code-cards.webflow.io/
I've came across a few annoyances. I can't set the image source to be empty or have height: calc(100% - 40px).
How can I add
height: calc(100% - 40px); to an element? For example the images on http://code-cards.webflow.io/
Here's what I'm trying to accomplish in Webflow: