I have been building a website that I like but it is a little bit 'busy' looking. I have a background image (a picture of bark) with multiple boxes floating on it with the info. For example, I have a boxs for navigation, one for the title, and one eith the article. They are spaced out so you can see the bark background through the cracks. I like this but it distracts from the main information in a way I dont want. How can I suround these boxes with a semi transparent white so that you can only lightly see the image through it. I still want the picture to be clear on the edges just have the 'fog' in the center. i tried putting them in an element that has the opacity set down but that affects all child elements. How can i do this but keep the inside text fully clear?