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js set css variable

Lada Ilina 
var root = document.querySelector(':root');
root.style.setProperty('--variable', 'lightblue');
/or/
root.style.setProperty('--variable', myColor);
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4
5
Mayank Chand Rajwar 85 points 

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

4 (5 Votes)
0
3.5
8
Diggy 60 points 

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

3.5 (8 Votes)
0
4
2
Only_pro 115 points 

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

4 (2 Votes)
0
3.88
8
Angelo29 90 points 

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

3.88 (8 Votes)
0
5
1
Michael M 120 points 

                                    let docStyle = getComputedStyle(document.documentElement);

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

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

5 (1 Votes)
0
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