Answers for "how to add a gray background all html page javascript"

6

javascript change background color

function changeBackground(color) {
   document.body.style.background = color;
}

window.addEventListener("load",function() { changeBackground('red') });
Posted by: Guest on March-20-2020
2

how to change background color using js

var warning = document.getElementById("warning");
  warning.style.background-color = "red";
Posted by: Guest on August-30-2020

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