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Editorial Team
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Asked: 2026-05-12T08:11:58+00:00

I researched for a while, hasn’t found a CSS solution yet, em and ex

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I researched for a while, hasn’t found a CSS solution yet, em and ex units are not correct in this case. What I want is simply a div box that exactly fits 80×25 monospace text. Do I have to resort to Javascript solutions?

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1 Answer

  1. Editorial Team

    em does work in this case, if you know the proper ratios involved with your font. Try the following HTML:

    (The danger with this is that some browsers adjust the font, which can alter the width/height of the font. For 100% accuracy, you might have to go with JavaScript.)

    <style type="text/css">
    #text-container {
        border: #f00 solid 1px;
        font: 10px/1.2 Courier, monospace;
        width: 48em;  /* 80 x 0.6 (the width/height ratio of Courier) */
        height: 30em; /* 25 x 1.2 (line-height is 1.2) */
        overflow: hidden;
    }
</style>

<div id="text-container">
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</div>
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