What is Resolution?
In web design, an image’s resolution tells you how many pixels it contains horizontally and vertically. Higher-resolution images tend to be more detailed, but they also have larger file sizes.
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More About Resolution
Resolution is an essential concept in web design and computing in general. Every image that you see on the web has a set resolution. The images can be resized, but depending on their file type, the resolution that you choose can drastically impact image quality.
Every computing device with a screen also has a maximum resolution, which depends on the screen size. In computer screens and images, the resolution indicates how many pixels you can see both vertically and horizontally.
A greater resolution translates to higher-fidelity images, but those usually have larger file sizes. With a website, you want to use large image resolutions to show enough details, but not so much that you’re dealing with massive files.