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Global and Component Style Settings with CSS Variables

The title of this Sara Soueidan article speaks to me. I’m a big fan of the idea that some CSS is best applied globally, and some CSS is best applied scoped to a component. I’m less interested in how that is done and more interested in just seeing that conceptual approach used in some fashion.

Sara details an approach where components don’t have too much styling by default, but have CSS custom properties applied to them that are ready to take values should you choose to set them.

For each pattern, I’ve found myself modifying the same properties whenever I needed to use it — like the font, colors (text, background, border), box shadow, spacing, etc. So I figured it would be useful and time-saving if I created variables for those properties, define those variables in the ‘root’ of the component, and ‘pass in’ the values for these variables when I use the pattern as I need. This way I can customize or theme the component by changing the property values in one rule set, instead of having to jump between multiple ones to do so.

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