To show an ellipsis (...) when text gets cut off in a Webflow textbox, you can use CSS text overflow and white-space properties. Here's the solution:
Alternatively, if you prefer to use code, you can add the following CSS snippet to your project:
```
.custom-class {
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
```
Make sure to replace "custom-class" with the appropriate class name you've assigned to your textbox element in Webflow.
By using the CSS properties "overflow: hidden", "text-overflow: ellipsis", and "white-space: nowrap", you're essentially telling the browser to clip any overflowing text within the textbox, display an ellipsis, and prevent line breaks respectively.
This will ensure that when the text within the textbox exceeds its container's width, it will be truncated and replaced with an ellipsis.