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Asked: 2026-05-30T00:13:42+00:00

I am developing a web application where use can upload pictures. I create thumbnails

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I am developing a web application where use can upload pictures. I create thumbnails of various sizes. Lets say that one of the sizes is 240, 240 .

For this thumbnail when I render the image I want to put “height” and “width” attribute as it is recommended. However the image uploaded by user might be really tall and skinny. In that case the width will not be “240”.

What is the recommended height and width attribute for this case. Or should I not worry about height and weight attribute for thumbnails.

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1 Answer

  1. Editorial Team

    No, you should not put an incorrect width and height on an img element. What you should do, however, is output the correct size image when you’re creating the thumbnail. For example, instead of scaling an image down from 500x200 to 240x96, create a new, transparent image that is 240x240 and place the scaled image (240x96) in the middle of the transparent image. Then, you can specify the width and height on the img, and not incorrectly stretch any images.

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