I have created an image Carousel using Twitter Bootstrap 2.3.2 but when resizing the browser/viewing on a smaller screened device the caption background loses it opacity.
An example can be seen on the bootstrap website (try resizing the browser to mobile screen size, the caption background changes to a solid color).
What is causing this?
How can this be overridden?
You can adjust the opacity in your CSS, where 0.35 is the opacity. Higher number -> less opacity
.carousel-caption {
background: rgba(0, 0, 0, 0.35);
}