The Spacing Variable

Oct 20, 2025

In modern Webflow development, CSS variables have become essential for building scalable and maintainable projects. Lately, I’ve started using something I’ll call a spacing variable — a single custom property that controls all the structural spacing across a site (such as section paddings, container spacing, and layout gaps etc.).

I typically set the base spacing to 2.5rem on desktop, then use calc() to derive consistent spacing values throughout the site. For instance, a fixed navbar might have a height of calc(2 * var(--space)), while the gap between navigation links could be calc(0.5 * var(--space))

On smaller screens, you only need to make a single change to the variable, and every layout adapts automatically to the proper size. It’s a tiny thing, but it’s made my projects more consistent and easier to maintain in Webflow, so I’m happy.

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