CSS trigger rule when element content starts wrapping

Question

I can use the following CSS to make something happen if the width of the browser is less than 800 pixels.

@media only screen and (max-width : 800px)
{
    #content
    {
        width: auto;
    }
}

Is there a way to make some kind of CSS happen to a specific element if the height of that particular element is greater than a certain value?

My goal is to have a special CSS trigger if the content of the elements starts to wrap due to the browser width being too narrow, regardless of the hard-coded maximum width.

---

More specific example.

<h2>Long title followed by <span class="subtitle">a subtitle</span></h2>


.subtitle
{
    margin-left: .7em;
    font-size: .6em;
}

@media only screen and (max-width : 600px)
{
    .subtitle
    {
        vertical-align: super;
        &:before
        {
            content: '\A';
            white-space: pre;
        }
    }
}

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Answer 1

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