VW (viewport width)

Have you ever found yourself writing multiple CSS queries just to ensure your website looks good on different screen sizes?

While this approach can be effective, it can also be time-consuming and require a lot of code. That's where viewport units (VW) come in.

Viewport units are a powerful tool in CSS that allow you to set sizes and dimensions relative to the size of the browser viewport. One particularly useful application of VW units is in creating responsive designs that adjust to different screen sizes. By using VW units, you can create designs that adapt to any screen size without having to write a lot of code.

Here are two common use cases for VW units in responsive design:

1. Font Sizes

Setting font sizes using VW units is a great way to ensure that your text remains legible and readable on different screen sizes. To use VW units for font sizes, simply set the font size using the "vw" unit instead of "px" or "em". For example, if you want your body text to be 16 pixels on desktop screens, you could set the font size to 1.6vw. This would make the font size adjust proportionally to the viewport width, ensuring that your text remains legible on smaller screens.

  body {
    font-size: 1.6vw;
  }

1. Image Width

Another great use case for VW units is in setting image widths. By using VW units for image widths, you can ensure that your images scale proportionally to the size of the viewport. This is particularly useful for header images and other images that are meant to span the entire width of the screen. To set an image width using VW units, simply set the width using the "vw" unit instead of "px" or "em". For example, if you want your header image to span the entire width of the viewport, you could set the width to 100vw.

 img {
   width: 100vw;
  }

Using VW units in CSS can be a powerful tool for creating responsive designs that adapt to different screen sizes. By setting font sizes and image widths using VW units, you can ensure that your website looks good and is readable on all devices without having to write a lot of code. This can save you time and make your code more maintainable, making it a great technique to have in your CSS toolbox.

In conclusion, if you're looking for a way to create responsive designs without having to write a lot of code, consider using viewport units. Whether you're setting font sizes or image widths, VW units can help ensure that your website looks great on any screen size. Give it a try and see how it works for you!