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Angelos Chalaris
2020-04-30 13:21:04 +03:00
parent d9fd2d23c3
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snippets/dynamic-shadow.md
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@ -5,6 +5,17 @@ tags: visual,intermediate
Creates a shadow similar to `box-shadow` but based on the colors of the element itself.
- `position: relative` on the element establishes a Cartesian positioning context for psuedo-elements.
- `z-index: 1` establishes a new stacking context.
- `:after` defines a pseudo-element.
- `position: absolute` takes the pseudo element out of the flow of the document and positions it in relation to the parent.
- `width: 100%` and `height: 100%` sizes the pseudo-element to fill its parent's dimensions, making it equal in size.
- `background: inherit` causes the pseudo-element to inherit the linear gradient specified on the element.
- `top: 0.5rem` offsets the pseudo-element down slightly from its parent.
- `filter: blur(0.4rem)` will blur the pseudo-element to create the appearance of a shadow underneath.
- `opacity: 0.7` makes the pseudo-element partially transparent.
- `z-index: -1` positions the pseudo-element behind the parent but in front of the background.
```html
<div class="dynamic-shadow"></div>
```
@ -30,16 +41,3 @@ Creates a shadow similar to `box-shadow` but based on the colors of the element
z-index: -1;
}
```
#### Explanation
- `position: relative` on the element establishes a Cartesian positioning context for psuedo-elements.
- `z-index: 1` establishes a new stacking context.
- `:after` defines a pseudo-element.
- `position: absolute` takes the pseudo element out of the flow of the document and positions it in relation to the parent.
- `width: 100%` and `height: 100%` sizes the pseudo-element to fill its parent's dimensions, making it equal in size.
- `background: inherit` causes the pseudo-element to inherit the linear gradient specified on the element.
- `top: 0.5rem` offsets the pseudo-element down slightly from its parent.
- `filter: blur(0.4rem)` will blur the pseudo-element to create the appearance of a shadow underneath.
- `opacity: 0.7` makes the pseudo-element partially transparent.
- `z-index: -1` positions the pseudo-element behind the parent but in front of the background.