Difference between px and vh

Pravin M
3 min readMar 1, 2024
Difference between px and vh

Source:- Difference between px and vh

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Cascading Style Sheets (CSS) provide developers with a variety of units to define measurements, among which ‘px’ and ‘vh’ stand out. While both are used to specify dimensions, they operate quite differently and serve distinct purposes. In this article, we’ll delve into the dissimilarities between ‘px’ and ‘vh’, along with practical code examples to illustrate their usage.

Understanding ‘px’ (Pixels)

Pixels (‘px’) are a fundamental unit of measurement in web design. They represent the smallest unit of screen space and are fixed in size, regardless of screen size or resolution. When dimensions are specified using pixels, elements on a webpage retain their size relative to the pixel density of the display. This makes ‘px’ ideal for defining precise dimensions for elements such as borders, margins, and fonts.

.element {
width: 200px;
height: 100px;
font-size: 16px;
margin: 10px;
border: 1px solid #000;
}

In the above CSS snippet, the dimensions of the .element class are defined using pixels. Regardless of the viewport size or device resolution, the width, height, font size, margin, and border will remain fixed at the…

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Pravin M
Pravin M

Written by Pravin M

I am a frontend developer with 10+ years of experience Blog :- https://www.frontendinterviewquestions.com

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