elementstylesetPropertycolor

elementstylesetPropertycolor refers to using the CSS Object Model API to set a CSS property on a DOM element’s inline style via the setProperty method. This approach updates the corresponding CSS property in the element’s style attribute and is commonly used for dynamic styling without altering existing stylesheet rules.

Syntax and parameters: element.style.setProperty(propertyName, value, priority). propertyName is a string containing a CSS property name in kebab-case (for example, 'color' or '--custom-prop' for CSS variables). The value is a string with the desired value. The optional priority parameter is a string, typically 'important', which appends !important to the property.

Examples and usage: element.style.setProperty('color', 'red'); sets the text color to red on the element. element.style.setProperty('--theme-color', '#3367D6'); defines a CSS custom property on the element. element.style.setProperty('color', 'blue', 'important'); applies the color with an important priority. These changes affect only the element’s inline style and override matching declarations in stylesheets for that element.

Behavior and considerations: setProperty affects inline styles, not styles defined in external or internal stylesheets. If the property is new to the inline style, it is created; if it is invalid for the property, the value may be ignored. The method is widely supported in modern browsers as part of the CSSStyleDeclaration interface and is commonly used for runtime styling, feature flags, or theming tasks. It does not directly modify computed styles, which may differ due to inheritance and cascade rules.