CSSKeyframesRule: deleteRule() method
The deleteRule()
method of the CSSKeyframeRule
interface deletes the CSSKeyFrameRule
that matches the specified keyframe selector.
Syntax
deleteRule(select)
Parameters
select
-
A string which contains the keyframe selector of the rule to be deleted, which must be:
- a comma-separated list of percentage values between 0% and 100%;
- or, the keywords
from
orto
Note that the number and order of the values in the specified keyframe selector must match those of the targeted keyframe rule(s). White-space is disregarded.
Return value
None (undefined
).
Examples
The CSS includes a keyframes at-rule. This will be the first CSSRule
returned by document.styleSheets[0].cssRules
.
myRules[0]
returns a CSSKeyframesRule
object. Returning the cssRules
property would return a CSSRuleList
containing two rules.
After deleting a rule with deleteRule()
the cssRules
property returns a CSSRuleList
containing one rule.
@keyframes slidein {
from {
transform: translateX(0%);
}
to {
transform: translateX(100%);
}
}
let myRules = document.styleSheets[0].cssRules;
let keyframes = myRules[0]; // a CSSKeyframesRule
keyframes.deleteRule("to");
console.log(keyframes.cssRules); // a CSSRuleList object with one rule
Specifications
Specification |
---|
CSS Animations Level 1 # dom-csskeyframesrule-deleterule |
Browser compatibility
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