This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The descendant combinator — typically represented by a single space (" ") character — combines two selectors such that elements matched by the second selector are selected if they have an ancestor (parent, parent's parent, parent's parent's parent, etc.) element matching the first selector. Selectors that utilize a descendant combinator are called descendant selectors.
/* List items that are descendants of the "my-things" list */
ul.my-things li {
margin: 2em;
}
The descendant combinator is technically one or more CSS white space characters — the space character and/or one of four control characters: carriage return, form feed, new line, and tab characters — between two selectors in the absence of another combinator. Additionally, the white space characters of which the combinator is comprised may contain any number of CSS comments.
selector1 selector2 {
/* property declarations */
}
li {
list-style-type: disc;
}
li li {
list-style-type: circle;
}
<ul>
<li>
<div>Item 1</div>
<ul>
<li>Subitem A</li>
<li>Subitem B</li>
</ul>
</li>
<li>
<div>Item 2</div>
<ul>
<li>Subitem A</li>
<li>Subitem B</li>
</ul>
</li>
</ul>
| Specification |
|---|
| Selectors Level 4> # descendant-combinators> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
Descendant_combinator |
1 | 12 | 1 | 3.5 | 1 | 18 | 4 | 10.1 | 1 | 1.0 | 4.4 | 1 |
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https://developer.mozilla.org/en-US/docs/Web/CSS/Descendant_combinator