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Summary
The CSS all shorthand property resets all properties, apart from unicode-bidi and direction, to their initial or inherited value.
| Initial value | There is no practical initial value for it. |
|---|---|
| Applies to | all elements |
| Inherited | no |
| Media | There is no practical media for it. |
| Computed value | as the specified value applies to each property this is a shorthand for. |
| Animatable | as each of the properties of the shorthand (all properties but unicode-bidi and direction) |
| Canonical order | the unique non-ambiguous order defined by the formal grammar |
Syntax
all: initial; all: inherit; all: unset; /* CSS Cascading and Inheritance Level 4 */ all: revert;
Values
initial- This keyword indicates to change all the properties applying to the element or the element's parent to their initial value.
unicode-bidianddirectionvalues are not affected. inherit- This keyword indicates to change all the properties applying to the element or the element's parent to their parent value.
unicode-bidianddirectionvalues are not affected. unset- This keyword indicates to change all the properties applying to the element or the element's parent to their parent value if they are inheritable or to their initial value if not.
unicode-bidianddirectionvalues are not affected. revert- If the cascaded value of a property is the revert keyword, the behavior depends on the origin to which the declaration belongs:
- user-agent origin
- Equivalent to unset.
- user origin
- Rolls back the cascade to the user-agent level, so that the specified value is calculated as if no author-level or user-level rules were specified for this property.
- author origin
- Rolls back the cascade to the user level, so that the specified value is calculated as if no author-level rules were specified for this property. For the purpose of revert, this origin includes the Override and Animation origins.
Formal syntax
initial | inherit | unset
Examples
HTML
<blockquote id="quote">Lorem ipsum dolor sit amet, consectetur adipiscing elit.</blockquote> Phasellus eget velit sagittis.
CSS
html {
font-size: small;
background-color: #F0F0F0;
color: blue;
}
blockquote {
background-color: skyblue;
color: red;
}
Results in:
No all property
The <blockquote> uses the browsers default styling together with a specific background and text color. It also behaves as a block element: the text that follows it is beneath it.
all:unset
The <blockquote> doesn't use the browser default styling: it is an inline element now (initial value), its background-color is transparent (initial value), but its font-size is still small (inherited value) and its color is blue (inherited value).
all:initial
The <blockquote> doesn't use the browser default styling: it is an inline element now (initial value), its background-color is transparent (initial value), its font-size is normal (initial value) and its color is black (initial value).
all:inherit
The <blockquote> doesn't use the browser default styling: it is a block element now (inherited value from its containing <div>), its background-color is transparent (inherited value), its font-size is small (inherited value) and its color is blue (inherited value).
Specifications
| Specification | Status | Comment |
|---|---|---|
| CSS Cascading and Inheritance Level 4 The definition of 'all' in that specification. |
Working Draft | Added the revert value. |
| CSS Cascading and Inheritance Level 3 The definition of 'all' in that specification. |
Candidate Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 37 | 27 (27) | No support | 24 | No support |
revert |
No support | No support | No support | No support | 9.1 |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | No support | 27.0 (27) | No support | No support | No support |
revert |
No support | No support | No support | No support | 9.3 |
See also
The CSS-wide property values: initial, inherit, unset, and revert.