CSS blending across various elements

Question

CSS blending across various elements

Is there a way to apply a single CSS3 gradient background to multiple elements, where the gradient spans over the parent element but is only visible inside the child elements?

I came across this thread during my search: Applying gradient over multiple views

My issue is described in that thread, but I require a solution using CSS/HTML code.

In order to illustrate the problem, I created two images:

The first image shows the basic layout. The two <div>s that require a gradient background are within a larger <div>.

The second image demonstrates how the gradient smoothly transitions from element A to element B. While this effect can be achieved easily in image-editing software, I am seeking a CSS-only solution as using images may not be ideal.

I have experience with gradients, but haven't been able to figure out a solution for this specific issue on my own.

Any assistance would be greatly appreciated.

EDIT (06/01/15 13:30 GMT+1): It's important that Elements A and B can have rounded corners. The original idea was to use a radial-gradient for the spanning effect, but it's not a requirement. Perhaps this problem does not have a feasible solution.

html css gradient

Answer 1

Answer №1

(Even though this question is quite old...)

Check out Multiple.js - a resource that explains how to add gradients to multiple elements without using JavaScript.

Here's an excerpt from the demo page:

.selector {
  background-image: linear-gradient(white, black);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;  /* <- this is important */
  width: 100px;
  height: 100px;
}

background-attachment: fixed makes the background expand to fit the viewport and display correctly in each element, providing the desired effect!

The concept is simple yet effective, compatible with most modern browsers (even IE8).

When implemented, it appears like this:

Answer 2

(Even though this question is quite old...)

Check out Multiple.js - a resource that explains how to add gradients to multiple elements without using JavaScript.

Here's an excerpt from the demo page:

.selector {
  background-image: linear-gradient(white, black);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;  /* <- this is important */
  width: 100px;
  height: 100px;
}

background-attachment: fixed makes the background expand to fit the viewport and display correctly in each element, providing the desired effect!

The concept is simple yet effective, compatible with most modern browsers (even IE8).

When implemented, it appears like this:

Answer 3

Answer №2

Example: https://jsfiddle.net/andrewgu/gptbyejt/

If you're looking to achieve a gradient effect, one method is to mimic it using a solid background color. You can place the gradient div in the background and overlay it with another div that matches the background color, where you can add your content.

Advantages: Versatile, works across various platforms

Disadvantages: Limited to solid background colors

Alternatively, you can utilize CSS clipping to achieve a similar effect. By using CSS properties like clip-path and -webkit-clip-path, you can make parts of an element transparent. This technique allows for non-solid backgrounds, although you may need to adjust element sizes and positioning for optimal display. Despite some tweaking being required, CSS clipping offers decent cross-browser compatibility.

Advantages: Works with patterned backgrounds, compatible with multiple browsers

Disadvantages: Requires specific child-element sizing, may involve some tweaking

Answer 4

Example: https://jsfiddle.net/andrewgu/gptbyejt/

If you're looking to achieve a gradient effect, one method is to mimic it using a solid background color. You can place the gradient div in the background and overlay it with another div that matches the background color, where you can add your content.

Advantages: Versatile, works across various platforms

Disadvantages: Limited to solid background colors

Alternatively, you can utilize CSS clipping to achieve a similar effect. By using CSS properties like clip-path and -webkit-clip-path, you can make parts of an element transparent. This technique allows for non-solid backgrounds, although you may need to adjust element sizes and positioning for optimal display. Despite some tweaking being required, CSS clipping offers decent cross-browser compatibility.

Advantages: Works with patterned backgrounds, compatible with multiple browsers

Disadvantages: Requires specific child-element sizing, may involve some tweaking

Answer 5

Answer №3

If you combine the CSS property background-attachment: fixed with an iframe, you might just find the trick you're looking for. Be sure to take a look at nexts.github.io/Multiple.js and focus on the "How it works" section.

Answer 6

If you combine the CSS property background-attachment: fixed with an iframe, you might just find the trick you're looking for. Be sure to take a look at nexts.github.io/Multiple.js and focus on the "How it works" section.

CSS blending across various elements

Answer №1

Answer №2

Answer №3

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