CSS背景不透明度[重复]
问题: This question already has an answer here: 这个问题已经在这里有了答案: How do I give text or an image a transparent background using CSS? 如何使用CSS为文本或图像提供透明背景? 28 answers 28个答案 I am using something similar to the following code: 我正在使用类似于以下代码的内容: <div style="opacity:0.4; background-image:url(...);"> <div style="opacity:1.0;"> Text </div> </div> I expected this to make the background have an opacity of 0.4 and the text to have 100% opacity. 我希望这可以使背景的不透明度为0.4,文本的不透明度为100%。 Instead they both have an opacity of 0.4. 相反,它们都具有0.4的不透明度。 解决方案: 参考一: https://stackoom.com/question/hjU5/CSS背景不透明度-重复 参考二: https:/