CSS setting background color transparent fails

CSS setting background color transparency fails

In web development, we often use CSS styles to set the background color of elements. Sometimes, we want an element’s background color to be transparent so that background https://coder-cafe.com/wp-content/uploads/2025/09/images or other elements can show through. However, sometimes, when we set the background color to transparent, we find that the desired effect isn’t achieved. This article will explain in detail why this happens and how to resolve it.

Why Setting the Background Color to Transparent Doesn’t Work

First, let’s learn how to set background color transparency in CSS. Generally, we can achieve background color transparency by setting the background color’s alpha channel. For example, we can use the rgba() function to specify a color value with transparency. For example, rgba(0, 0, 0, 0.5) represents a black background color with 50% transparency.