document.getElementById background color code example
Example 1: javascript style background color
function changebackground(){
document.getElementById('id').style.backgroundColor = 'green' ;
}
function changebackground(){
document.body.style.backgroundColor = 'green';
}
Example 2: javascript change background color
document.body.style.backgroundColor = "yellow";
Example 3: javascript change background color
function changeBackground(color) {
document.body.style.background = color;
}
window.addEventListener("load",function() { changeBackground('red') });