What are CSS viewport units and how do they work?

What are CSS viewport units and how do they work?

CSS viewport units are relative units that are based on the size of the viewport. They include vw (viewport width), vh (viewport height), vmin (minimum of vw or vh), and vmax (maximum of vw or vh). For example, 1vw is 1% of the viewport's width.

Can you give me an example of how to use them in CSS?

Sure! You can use viewport units to set the width of an element. For instance, width: 50vw; will make the element take up 50% of the viewport's width.

Are there any drawbacks to using viewport units?

Yes, one drawback is that they can lead to unexpected layouts on very small or very large screens. It's important to test your design across different devices.

How do viewport units compare to other units like px or em?

Viewport units are responsive and adapt to the screen size, while px is fixed and em is relative to the font size of the element. Using viewport units can enhance responsiveness.