by Sai gowtham

Changing the background color of a page in JavaScript

In this tutorial, we are going to learn about how to change the background color of a webpage using JavaScript.

Changing the background color of the webpage

To change the background color of a webpage, first we need to access the HTML <body> element in JavaScript using the document.body property.

const body = document.body;

Now, change the background color by setting its style.background property to new color:

body.style.background = "red";

We can also change the background color of a webpage by clicking the button in JavaScript.

Here is an example:

HTML:

<button class="green">Green</button>

JavaScript:

const greenBtn = document.querySelector(".green");

greenBtn.addEventListener("click",()=>{
   const body =  document.body; // accessing body element
   body.style.background = "green"; // changing color
})

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