degree of transparency when semi-transparent elements overlap

Imagine you have two <div> elements, one with an opacity of .5 and another overlaying it with the same opacity. What would be the combined opacity of the two?
Interestingly, it's not as simple as,

  • .5 × .5

or even,

  • .5 + .5

How can this problem be calculated?

Answer №1

The correct equation you need is 1-(x multiplied by y)

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Ways to position two images in the center

A website has been created by me and now I am looking to center text on the two images in the header. Here is the relevant code snippet: <div class="header"> <img src="css/title578145459.png" class="headerImage left&qu ...

If there is no content present, the html element with contenteditable will have an <br>

I'm encountering an issue with a <div contenteditable="true"></div>. Whenever I enter content into it and then delete that content, the browser seems to automatically insert a <br> element into the div. Has anyone else experienced th ...

What is the proper method to deactivate a hyperlink in Angular 2?

I'm currently developing a web application using Angular2, and I find myself in need of displaying, but making it non-clickable, an <a> element within my HTML. Can anyone guide me on the correct approach to achieve this? Update: Please take no ...

A guide on defining the width of an element within a flex container when it overflows

Here is the code snippet I have: .divA { background: red; width: 500px; display: flex; flex-direction: row; overflow-y: scroll; } .epi { width: 50%; background: blue; } <div class="divA"> <div class="epi"> <h1>dsds ...

Updating content with jQuery based on radio button selection

Looking for assistance with a simple jQuery code that will display different content when different radio buttons are clicked. Check out the code here. This is the HTML code: <label class="radio inline"> <input id="up_radio" type="radio" n ...

:last-child is effective, but :first-child is inefficient

I'm having trouble using CSS to hide the first .sku element within an aside that contains two of these elements. Strangely, the :last-child selector works just fine. Can anyone explain why this might be happening? Here's a link to the JSFiddle fo ...

Ways to isolate and limit the application of CSS in React and Gatsby to specific pages instead of having it affect the global scope

At the moment, I'm working on integrating a keen-slider library(https://www.npmjs.com/package/keen-slider). To install it, we have to include import 'keen-slider/keen-slider.min.css'. This essentially adds the CSS globally to our project. Ho ...

jQuery Issue - Clash between multiple menus sharing the same class

Hey there! I'm currently diving into the world of jQuery and encountering an issue with my menu. Whenever I click on a menu item with either the "tm-nav-vertical" or "tm-nav-horizontal" class, it removes the .active class from the initial menu item. I ...

When the React-bootstrap Popover arrow is oriented vertically, the arrow colors appear to be inverted compared to when it

Utilizing a react-bootstrap Popover component, I have implemented custom styling for the arrow with a gray color and 50% opacity. The CSS code that enables this customization is as shown below: .popover .popover-arrow::before, .popover .popover-arrow::afte ...

A form field leaves the container element, positioned to the far right using the `float: right;` CSS property

This is the content within the <body> tag. <div id="border"> <p><h1 style="text-align: center;">Welcome to XYZ Airline!</h1></p> <table caption="Select your preferred seat" style="margin-botto ...

How to Navigate Downward with the Arrow Key in Python Selenium on a Mac Operating System

I am attempting to access a Drop-Down Menu on a website and choose a specific value. I am not sure how to click on an item within a Drop-Down Menu, so my idea was to instruct the WebDriver to use the Arrow-Down Key multiple times before pressing the ENTER/ ...

Curved edges achieved without the need for relative positioning

Can anyone help me with a specific code snippet to achieve rounded corners for this page ? Currently, I am using the PIE.htc file which only works when I declare position:relative; throughout the layout, causing disruptions. Is there a code workaround that ...

Tips for maximizing page layout efficiency without compromising on element visibility

What is occurring https://i.stack.imgur.com/Agjw6.gif The use of .hide() and .fadeIn(200) is resulting in a jittery effect that I would like to avoid. Desired Outcome When the user hovers over the menu icon, the menu icon should vanish the text "Pr ...

Adjust the column count based on the screen size, Susy suggested

When using the Compass/Sass plugin Susy, you typically set the number of columns in the _base.scss file. I prefer to have 12 columns for a desktop view, but this may be too many columns for a mobile display. Is there a method to alter the number of column ...

Creating a Functional Right Arrow on a Pure CSS Select Menu/Dropdown

I have implemented a custom select/dropdown menu by following the solution provided here: The functionality works well, but I am facing an issue where the dropdown options only appear when clicking on the box. Clicking on the 'arrow' located on ...

Steps to conceal an accordion upon loading the page and reveal it only when clicking on a specific element

Below is the code I am using to display an accordion in a Fancybox popup. However, I do not want the accordion to be visible on page load. If I hide it, the content inside also gets hidden when showing the accordion in the popup. When user clicks on Click ...

Concealing a hyperlink depending on the value chosen in a dropdown menu

Looking for guidance on how to use jQuery to read the current value of a drop-down list and hide a specific link based on that value. The drop-down list is for selecting the language/locale. For example, when "English" is selected, I want the link to be h ...

How to interact with a C# List using JavaScript

Our internship project entails creating a business application using Unity WebGL. However, we're facing a challenge when it comes to retrieving a list from C# to populate a Select element on our webpage. We've successfully communicated and retrie ...

Guide to displaying or hiding elements based on the number of selected checkboxes

When only one checkbox is checked, all buttons in the head-btn class should be displayed. By default, only the add folder and upload buttons are shown. If a user selects two checkboxes, the share button should be hidden. If they uncheck one of the checkbo ...

Incorporate titles for items in the jquery caroufredsel plugin

I am currently using the second example of the caroufredsel plugin, which can be found on this page . I am attempting to add a caption for each picture. To achieve this, I have used `li` and `lis` in my HTML code: <div class="list_carousel"> &l ...