README
<portal>
by Custom Elements
Animated motion
Add animated motion to the <portal>
element by Custom Elements.
Demo
Examples
<x-portal-animation
src="foo.html"
referrerpolicy="origin">
</x-portal-animation>
Attributes
src
[optional]- URL of a page to be displayed. (Same as src attribute of <portal> Element)
referrerpolicy
[optional]- Referrer Policy. (Same as referrerpolicy attribute of <portal> Element)
e.g. <x-portal-animation src="https://example.com/" referrerpolicy="same-origin"></x-portal-animation>
Style customization (CSS custom properties)
| name | deault | Description |
|-|-|-|
| --portal-width | 640px | Width of portal |
| --portal-height | 360px | Height of portal |
| --portal-max-width | 100% | Maximum width of portal |
| --portal-max-height | 100vh | Maximum height of portal |
| --portal-border-style | solid | Border style of portal (border-style
property) |
| --portal-border-width | 1px | Border width of portal (border-width
property) |
| --portal-border-color | currentColor | Border color of portal (border-color
property) |
| --portal-scale | 0.5 | Amount of scaling of portal (The value of the scale()
in the transform
property) |
| --portal-animation-duration | 0.5s | Time a transition animation (transition-duration
property) |
| --portal-outline-style | solid | Outline style of portal (outline-style
property) |
| --portal-outline-width | 1px | Outline width of portal (outline-width
property) |
| --portal-outline-color | currentColor | Outline color of portal (outline-color
property) |
| --portal-outline-offset | 0px | Outline offset of portal (outline-offset
property) |
* CSS custom properties names have changed in the version 2.0.0 update. (Not compatible with version 1 series)
⚠ Precautions for use
As of December 2020, there is no officially supported browser for the <portal>
element. Chrome 87 is supported with chrome://flags/#enable-portals enabled.