The CSSKeywordValue() constructor creates a new CSSKeywordValue object which represents CSS keywords and other identifiers.

value

Sets or returns the value of the new CSSKeywordValue.

TypeError

Thrown if the value parameter is not specified or it is not of type String.

The following example resets the CSS display property to its defaults, setting the inline style attribute to style="display: initial" if viewed in the developer tools inspector.

const keyword = new CSSKeywordValue("initial");
const myElement = document.getElementById("myElement").attributeStyleMap;
myElement.set("display", keyword);

console.log(myElement.get("display").value); // 'initial'
console.dir(keyword);