Why Doesn't `text-overflow` Work with Flexbox, and How Can I Fix It?

Why is Text Overflow Not Working with Flex Display?

In CSS, the text-overflow property is used to truncate text when it exceeds the available width of its container. However, when used together with display: flex, it might not work as expected.

Consider the following code:

.flex-container {
  display: flex;
  text-overflow: ellipsis;
  overflow: hidden;
  text-align: left;
}

<h1>Flexible Boxes</h1>
<div class="flex-container">

In this example, the flex-container is a flexbox container, and the text within its child div is expected to be truncated. However, you may encounter the following result:

Output: ThisIsASamp  
Expected: ThisIsASam...

If you remove the display: flex property, the text truncation works as expected. So, what's the issue?

The problem lies in the way display: flex distributes space within the container. Without flex, the text is squeezed into the available width and truncated accordingly. However, when flex is applied, the child element (the div) becomes a flex item and inherits the container's flexbox properties.

To address this, you need to explicitly style the child element to truncate its text. One way to achieve this is by creating a separate class for the flex children and applying the appropriate styles:

.flex-child {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

By applying these styles to the child element, you ensure that it wraps its text and truncates it when necessary, even within a flexbox container.

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