Understanding CSS Background Opacity and Inheritance
In CSS, the opacity property controls the transparency of an element. By default, the opacity is set to 1.0, which means the element is fully opaque. Lower opacity values indicate increasing transparency.
When multiple nested elements have different opacity values, the child elements inherit the opacity of their parent element. This means that unless you explicitly specify otherwise, all children of an element with reduced opacity will also have the same reduced opacity.
Addressing the Issue with Inherited Opacity
In the provided code, although the inner div has an opacity of 1.0, it appears with an opacity of 0.4 because it inherits the opacity set on its parent div. To solve this issue, there are a few options:
Utilize RGBA Colors: For the background color, you can use RGBA (Red, Green, Blue, Alpha) values. Alpha represents the transparency, where 0 is fully transparent and 255 is fully opaque. By specifying an RGBA value with an alpha component less than 255, you can achieve a translucent background while keeping the text fully opaque. For example:
<code class="css">div { background-color: rgba(0, 0, 0, 0.5); /* 50% faded black background */ }</code>
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