JAVASCRIPT

how to change a css variable with javascript

var root = document.querySelector(':root');
root.style.setProperty('--variable', 'lightblue');
/or/
root.style.setProperty('--variable', myColor); 

javascript get css variable

let docStyle = getComputedStyle(document.documentElement);

//get variable
let myVarVal docStyle.getPropertyValue('--my-variable-name');

//set variable
docStyle.setProperty('--my-variable-name', '#fff');

javascript get css variable

getComputedStyle(document.documentElement)
    .getPropertyValue('--my-variable-name'); // #999999

how to change css variable in javascript

document.documentElement.style.setProperty("--main-background-color", "green");

set css variable from javascript

document.documentElement.style.cssText = "--tab-count: 3";
/or/
document.documentElement.style.setProperty("--tab-count", 5);
/or/
document.documentElement.setAttribute("style", "--tab-count: 5");

how to change css variable in javascript

document.documentElement.setAttribute("style", "--main-background-color: green");

js set css variable

document.documentElement.style.setProperty("--main-background-color", "green");

how to set css variables in javascript

		const docStyles = document.documentElement.style;

		docStyles.setProperty('--accent', '#ffffff');
		docStyles.setProperty('--textColor', '#ffffff');

how to change css variable in javascript

document.documentElement.style.cssText = "--main-background-color: red";