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Dynamically resizing an image

This is something that comes up, particularly when dealing with MediaWiki infoboxes. We had an infobox table floating on the right side of the page with a fixed with. Then there was an image to the left of it that was supposed to take up the remaining page’s width. The challenge was: What happens as the user shrinks or stretches the browser window? The fixed width table would stay the same size but the image would have to grow or shrink with the browser width.

There are some scripts out there that would do this. You don’t need them. Here’s what to do:

{| style="float: right; width: 613px" ... |}
<div id="image-holder" style="margin-right: 630px;">

Then add some CSS:

div#image-holder img {
  height: auto;
  width: 100%;

Simple, right? Basically, the 100% width combined with the right margin gives us a “100% percent minus x number of pixels” effect. The browser responds accordingly.

See it live here.

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One Response

  1. That is fantastic! I’m adding it to Common.css right now!!

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