html - CSS crop string in the middle

Question

I have a big filename that I'm cropping using css text-overflow: ellipsis.

<style>
   #fileName {
      width: 100px;
      white-space: nowrap;
      text-overflow: ellipsis;
      overflow: hidden;
  }
</style>
<div id="fileName"> This is the big name of my file.txt</div>

So I have this output

This is the bi...

But I want to preserve the file extension and have something like this

This is the... le.txt

Is it possible only using CSS?

Since my files are always txt, I've tried to use text-overflow: string, but it looks like it only works on Firefox:

 text-overflow: '*.txt';

Answer 1

Here is a clean CSS solution using the data-* attribute and two ::after pseudo-elements. I also added an optional hover and show all text (the #fileName::after pseudo element needs to be removed when the full text is shown).

Example 1

#fileName {
  position: relative;
  width: 100px;
}

#fileName p {
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

#fileName:after {
  content: attr(data-filetype);
  position: absolute;
  left: 100%;
  top: 0;
}


/*Show on hover*/

#fileName:hover {
  width: auto
}

#fileName:hover:after {
  display: none;
}

<div id="fileName" data-filetype="txt">
  <p>This is the big name of my file.txt</p>
</div>