how to restyle element in #shadow-root ( shadow DOM )
up vote
0
down vote
favorite
the following code is a view from chrome dev tools
<textarea>
#shadow-root (user-agent)
<p> This I want to restyle </p>
<textarea>
what CSS selector I have to use if I would like to restyle element in shadow DOM ?
thank you
html css3 shadow-dom
asked Nov 22 at 12:44
Pavel Franta
154112
add a comment |
up vote
0
down vote
favorite
the following code is a view from chrome dev tools
<textarea>
#shadow-root (user-agent)
<p> This I want to restyle </p>
<textarea>
what CSS selector I have to use if I would like to restyle element in shadow DOM ?
thank you
html css3 shadow-dom
asked Nov 22 at 12:44
Pavel Franta
154112
1
Get deep into that; gist.github.com/praveenpuglia/0832da687ed5a5d7a0907046c9ef1813, ...but answering your question it's impossible to style it with any selector.
– Jakub Chlebowicz
Nov 22 at 12:47
2
You cannot access the content of a user-agent Shadow DOM. stackoverflow.com/a/38736220/4600982
– Supersharp
Nov 22 at 13:44
@connexo :) actually in my case textarea has two divs, one for placeholder and second for the content itself. To my surprise, I could restyle placeholder directly from CSS with this ::placeholder, but still struggling with the content div restyling
– Pavel Franta
Nov 26 at 9:41
@connexo I didn't customize anything, it is like it was, plain HTML element textarea. So it should be valid i guess :D
– Pavel Franta
Nov 26 at 13:08
@connexo ? If I inspect plain, empty textarea in chrome dev tools, it contains at least empty <div></div> in shadow-root ... what exactly is unclear about that ? Question was how to restyle this div... if you dont know any useful answer so please don't waste your time with my question :)
– Pavel Franta
Nov 27 at 15:06
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
the following code is a view from chrome dev tools
<textarea>
#shadow-root (user-agent)
<p> This I want to restyle </p>
<textarea>
what CSS selector I have to use if I would like to restyle element in shadow DOM ?
thank you
html css3 shadow-dom
asked Nov 22 at 12:44
Pavel Franta
154112
the following code is a view from chrome dev tools
<textarea>
#shadow-root (user-agent)
<p> This I want to restyle </p>
<textarea>
what CSS selector I have to use if I would like to restyle element in shadow DOM ?
thank you
html css3 shadow-dom
html css3 shadow-dom
asked Nov 22 at 12:44
Pavel Franta
154112
asked Nov 22 at 12:44
Pavel Franta
154112
asked Nov 22 at 12:44
Pavel Franta
154112
asked Nov 22 at 12:44
Pavel Franta
154112
asked Nov 22 at 12:44
Pavel Franta
154112
154112
1
Get deep into that; gist.github.com/praveenpuglia/0832da687ed5a5d7a0907046c9ef1813, ...but answering your question it's impossible to style it with any selector.
– Jakub Chlebowicz
Nov 22 at 12:47
2
You cannot access the content of a user-agent Shadow DOM. stackoverflow.com/a/38736220/4600982
– Supersharp
Nov 22 at 13:44
@connexo :) actually in my case textarea has two divs, one for placeholder and second for the content itself. To my surprise, I could restyle placeholder directly from CSS with this ::placeholder, but still struggling with the content div restyling
– Pavel Franta
Nov 26 at 9:41
@connexo I didn't customize anything, it is like it was, plain HTML element textarea. So it should be valid i guess :D
– Pavel Franta
Nov 26 at 13:08
@connexo ? If I inspect plain, empty textarea in chrome dev tools, it contains at least empty <div></div> in shadow-root ... what exactly is unclear about that ? Question was how to restyle this div... if you dont know any useful answer so please don't waste your time with my question :)
– Pavel Franta
Nov 27 at 15:06
add a comment |
1
Get deep into that; gist.github.com/praveenpuglia/0832da687ed5a5d7a0907046c9ef1813, ...but answering your question it's impossible to style it with any selector.
– Jakub Chlebowicz
Nov 22 at 12:47
2
You cannot access the content of a user-agent Shadow DOM. stackoverflow.com/a/38736220/4600982
– Supersharp
Nov 22 at 13:44
@connexo :) actually in my case textarea has two divs, one for placeholder and second for the content itself. To my surprise, I could restyle placeholder directly from CSS with this ::placeholder, but still struggling with the content div restyling
– Pavel Franta
Nov 26 at 9:41
@connexo I didn't customize anything, it is like it was, plain HTML element textarea. So it should be valid i guess :D
– Pavel Franta
Nov 26 at 13:08
@connexo ? If I inspect plain, empty textarea in chrome dev tools, it contains at least empty <div></div> in shadow-root ... what exactly is unclear about that ? Question was how to restyle this div... if you dont know any useful answer so please don't waste your time with my question :)
– Pavel Franta
Nov 27 at 15:06
1
1
Get deep into that; gist.github.com/praveenpuglia/0832da687ed5a5d7a0907046c9ef1813, ...but answering your question it's impossible to style it with any selector.
– Jakub Chlebowicz
Nov 22 at 12:47
Get deep into that; gist.github.com/praveenpuglia/0832da687ed5a5d7a0907046c9ef1813, ...but answering your question it's impossible to style it with any selector.
– Jakub Chlebowicz
Nov 22 at 12:47
2
2
You cannot access the content of a user-agent Shadow DOM. stackoverflow.com/a/38736220/4600982
– Supersharp
Nov 22 at 13:44
You cannot access the content of a user-agent Shadow DOM. stackoverflow.com/a/38736220/4600982
– Supersharp
Nov 22 at 13:44
@connexo :) actually in my case textarea has two divs, one for placeholder and second for the content itself. To my surprise, I could restyle placeholder directly from CSS with this ::placeholder, but still struggling with the content div restyling
– Pavel Franta
Nov 26 at 9:41
@connexo :) actually in my case textarea has two divs, one for placeholder and second for the content itself. To my surprise, I could restyle placeholder directly from CSS with this ::placeholder, but still struggling with the content div restyling
– Pavel Franta
Nov 26 at 9:41
@connexo I didn't customize anything, it is like it was, plain HTML element textarea. So it should be valid i guess :D
– Pavel Franta
Nov 26 at 13:08
@connexo I didn't customize anything, it is like it was, plain HTML element textarea. So it should be valid i guess :D
– Pavel Franta
Nov 26 at 13:08
@connexo ? If I inspect plain, empty textarea in chrome dev tools, it contains at least empty <div></div> in shadow-root ... what exactly is unclear about that ? Question was how to restyle this div... if you dont know any useful answer so please don't waste your time with my question :)
– Pavel Franta
Nov 27 at 15:06
@connexo ? If I inspect plain, empty textarea in chrome dev tools, it contains at least empty <div></div> in shadow-root ... what exactly is unclear about that ? Question was how to restyle this div... if you dont know any useful answer so please don't waste your time with my question :)
– Pavel Franta
Nov 27 at 15:06
add a comment |
1 Answer
1
active
oldest
votes
up vote
2
down vote
accepted
ShadowDOM was designed to prevent CSS from leaking INTO or OUT OF the shadowDOM. It is kindof a replacement for <iframe> which had the same limitations on it. Any CSS in the <iframe> can not affect the content outside of the <iframe> and the CSS outside the <iframe> can not affect the content inside <iframe>.
But you can affect the inner CSS by using one of the following options:
None of the options below work for existing HTML elements. These examples are only for custom elements you write.
The first way to style an element in shadowDOM is by placing the styles in the shadowDOM with the content.
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: #A00; color: white; }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);<my-el></my-el>The second, more limited way, is to use CSS variables:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: var(--bgcolor, #A00); color: var(--color, white); }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);body {
--bgcolor: yellow;
--color: navy;
}<my-el></my-el>The third way, also limited, is through attributes or properties:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<p>inner content</p>`;
}
set bgColor(val) {
this.shadowRoot.querySelector('p').style.backgroundColor = val;
}
set color(val) {
this.shadowRoot.querySelector('p').style.color = val;
}
}
customElements.define('my-el', MyEl);
const myEl = document.querySelector('my-el');
myEl.bgColor = '#090';
myEl.color = 'white';<my-el></my-el>answered Nov 22 at 16:59
Intervalia
3,96411031
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
ShadowDOM was designed to prevent CSS from leaking INTO or OUT OF the shadowDOM. It is kindof a replacement for <iframe> which had the same limitations on it. Any CSS in the <iframe> can not affect the content outside of the <iframe> and the CSS outside the <iframe> can not affect the content inside <iframe>.
But you can affect the inner CSS by using one of the following options:
None of the options below work for existing HTML elements. These examples are only for custom elements you write.
The first way to style an element in shadowDOM is by placing the styles in the shadowDOM with the content.
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: #A00; color: white; }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);<my-el></my-el>The second, more limited way, is to use CSS variables:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: var(--bgcolor, #A00); color: var(--color, white); }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);body {
--bgcolor: yellow;
--color: navy;
}<my-el></my-el>The third way, also limited, is through attributes or properties:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<p>inner content</p>`;
}
set bgColor(val) {
this.shadowRoot.querySelector('p').style.backgroundColor = val;
}
set color(val) {
this.shadowRoot.querySelector('p').style.color = val;
}
}
customElements.define('my-el', MyEl);
const myEl = document.querySelector('my-el');
myEl.bgColor = '#090';
myEl.color = 'white';<my-el></my-el>answered Nov 22 at 16:59
Intervalia
3,96411031
add a comment |
up vote
2
down vote
accepted
ShadowDOM was designed to prevent CSS from leaking INTO or OUT OF the shadowDOM. It is kindof a replacement for <iframe> which had the same limitations on it. Any CSS in the <iframe> can not affect the content outside of the <iframe> and the CSS outside the <iframe> can not affect the content inside <iframe>.
But you can affect the inner CSS by using one of the following options:
None of the options below work for existing HTML elements. These examples are only for custom elements you write.
The first way to style an element in shadowDOM is by placing the styles in the shadowDOM with the content.
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: #A00; color: white; }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);<my-el></my-el>The second, more limited way, is to use CSS variables:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: var(--bgcolor, #A00); color: var(--color, white); }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);body {
--bgcolor: yellow;
--color: navy;
}<my-el></my-el>The third way, also limited, is through attributes or properties:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<p>inner content</p>`;
}
set bgColor(val) {
this.shadowRoot.querySelector('p').style.backgroundColor = val;
}
set color(val) {
this.shadowRoot.querySelector('p').style.color = val;
}
}
customElements.define('my-el', MyEl);
const myEl = document.querySelector('my-el');
myEl.bgColor = '#090';
myEl.color = 'white';<my-el></my-el>answered Nov 22 at 16:59
Intervalia
3,96411031
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
ShadowDOM was designed to prevent CSS from leaking INTO or OUT OF the shadowDOM. It is kindof a replacement for <iframe> which had the same limitations on it. Any CSS in the <iframe> can not affect the content outside of the <iframe> and the CSS outside the <iframe> can not affect the content inside <iframe>.
But you can affect the inner CSS by using one of the following options:
None of the options below work for existing HTML elements. These examples are only for custom elements you write.
The first way to style an element in shadowDOM is by placing the styles in the shadowDOM with the content.
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: #A00; color: white; }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);<my-el></my-el>The second, more limited way, is to use CSS variables:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: var(--bgcolor, #A00); color: var(--color, white); }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);body {
--bgcolor: yellow;
--color: navy;
}<my-el></my-el>The third way, also limited, is through attributes or properties:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<p>inner content</p>`;
}
set bgColor(val) {
this.shadowRoot.querySelector('p').style.backgroundColor = val;
}
set color(val) {
this.shadowRoot.querySelector('p').style.color = val;
}
}
customElements.define('my-el', MyEl);
const myEl = document.querySelector('my-el');
myEl.bgColor = '#090';
myEl.color = 'white';<my-el></my-el>answered Nov 22 at 16:59
Intervalia
3,96411031
ShadowDOM was designed to prevent CSS from leaking INTO or OUT OF the shadowDOM. It is kindof a replacement for <iframe> which had the same limitations on it. Any CSS in the <iframe> can not affect the content outside of the <iframe> and the CSS outside the <iframe> can not affect the content inside <iframe>.
But you can affect the inner CSS by using one of the following options:
None of the options below work for existing HTML elements. These examples are only for custom elements you write.
The first way to style an element in shadowDOM is by placing the styles in the shadowDOM with the content.
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: #A00; color: white; }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);<my-el></my-el>The second, more limited way, is to use CSS variables:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: var(--bgcolor, #A00); color: var(--color, white); }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);body {
--bgcolor: yellow;
--color: navy;
}<my-el></my-el>The third way, also limited, is through attributes or properties:
class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<p>inner content</p>`;
}
set bgColor(val) {
this.shadowRoot.querySelector('p').style.backgroundColor = val;
}
set color(val) {
this.shadowRoot.querySelector('p').style.color = val;
}
}
customElements.define('my-el', MyEl);
const myEl = document.querySelector('my-el');
myEl.bgColor = '#090';
myEl.color = 'white';<my-el></my-el>class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: #A00; color: white; }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);<my-el></my-el>class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: #A00; color: white; }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);<my-el></my-el>class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: var(--bgcolor, #A00); color: var(--color, white); }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);body {
--bgcolor: yellow;
--color: navy;
}<my-el></my-el>class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<style>
p { background-color: var(--bgcolor, #A00); color: var(--color, white); }
</style>
<p>inner content</p>`;
}
}
customElements.define('my-el', MyEl);body {
--bgcolor: yellow;
--color: navy;
}<my-el></my-el>class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<p>inner content</p>`;
}
set bgColor(val) {
this.shadowRoot.querySelector('p').style.backgroundColor = val;
}
set color(val) {
this.shadowRoot.querySelector('p').style.color = val;
}
}
customElements.define('my-el', MyEl);
const myEl = document.querySelector('my-el');
myEl.bgColor = '#090';
myEl.color = 'white';<my-el></my-el>class MyEl extends HTMLElement {
constructor() {
super();
this.attachShadow({mode:'open'}).innerHTML = `
<p>inner content</p>`;
}
set bgColor(val) {
this.shadowRoot.querySelector('p').style.backgroundColor = val;
}
set color(val) {
this.shadowRoot.querySelector('p').style.color = val;
}
}
customElements.define('my-el', MyEl);
const myEl = document.querySelector('my-el');
myEl.bgColor = '#090';
myEl.color = 'white';<my-el></my-el>answered Nov 22 at 16:59
Intervalia
3,96411031
edited Nov 22 at 17:27
answered Nov 22 at 16:59
Intervalia
3,96411031
answered Nov 22 at 16:59
Intervalia
3,96411031
answered Nov 22 at 16:59
Intervalia
3,96411031
3,96411031
add a comment |
add a comment |
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1
Get deep into that; gist.github.com/praveenpuglia/0832da687ed5a5d7a0907046c9ef1813, ...but answering your question it's impossible to style it with any selector.
– Jakub Chlebowicz
Nov 22 at 12:47
2
You cannot access the content of a user-agent Shadow DOM. stackoverflow.com/a/38736220/4600982
– Supersharp
Nov 22 at 13:44
@connexo :) actually in my case textarea has two divs, one for placeholder and second for the content itself. To my surprise, I could restyle placeholder directly from CSS with this ::placeholder, but still struggling with the content div restyling
– Pavel Franta
Nov 26 at 9:41
@connexo I didn't customize anything, it is like it was, plain HTML element textarea. So it should be valid i guess :D
– Pavel Franta
Nov 26 at 13:08
@connexo ? If I inspect plain, empty textarea in chrome dev tools, it contains at least empty <div></div> in shadow-root ... what exactly is unclear about that ? Question was how to restyle this div... if you dont know any useful answer so please don't waste your time with my question :)
– Pavel Franta
Nov 27 at 15:06