Docs: add overflow and text color info to progress bar page

Author: patrickhlauke

site/content/docs/5.3/components/progress.md

@@ -75,6 +75,14 @@ Add labels to your progress bars by placing text within the `.progress-bar`.
 </div>
 {{< /example >}}
 
+Note that by default, the content inside the `.progress-bar` is controlled with `overflow: hidden`, so it doesn't bleed out of the bar. If your progress bar is shorter than its label, the content will be capped and may become unreadable. To change this behavior, you can use `.overflow-visible` from the [overflow utilities]({{< docsref "/utilities/overflow" >}}), but make sure to also define an explicit [text color]({{< docsref "/utilities/colors#colors" >}}) so the text remains readable.
+
+{{< example >}}
+<div class="progress" role="progressbar" aria-label="Example with label" aria-valuenow="10" aria-valuemin="0" aria-valuemax="100">
+  <div class="progress-bar overflow-visible text-dark" style="width: 10%">Long label text for the progress bar, set to a dark color</div>
+</div>
+{{< /example >}}
+
 ## Backgrounds
 
 Use background utility classes to change the appearance of individual progress bars.
@@ -98,6 +106,23 @@ Use background utility classes to change the appearance of individual progress b
 {{< partial "callouts/warning-color-assistive-technologies.md" >}}
 {{< /callout >}}
 
+If you're adding labels to progress bars with a custom background color, make sure to also set an appropriate [text color]({{< docsref "/utilities/colors#colors" >}}), so the labels remain readable and have sufficient contrast.
+
+{{< example >}}
+<div class="progress" role="progressbar" aria-label="Success example" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100">
+  <div class="progress-bar bg-success" style="width: 25%">25%</div>
+</div>
+<div class="progress" role="progressbar" aria-label="Info example" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100">
+  <div class="progress-bar bg-info text-dark" style="width: 50%">50%</div>
+</div>
+<div class="progress" role="progressbar" aria-label="Warning example" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100">
+  <div class="progress-bar bg-warning text-dark" style="width: 75%">75%</div>
+</div>
+<div class="progress" role="progressbar" aria-label="Danger example" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100">
+  <div class="progress-bar bg-danger" style="width: 100%">100%</div>
+</div>
+{{< /example >}}
+
 ## Multiple bars
 
 You can include multiple progress components inside a container with `.progress-stacked` to create a single stacked progress bar. Note that in this case, the styling to set the visual width of the progress bar *must* be applied to the `.progress` elements, rather than the `.progress-bar`s.