How can use background attribute of body tag in HTML?
The background attribute can also be used to control the background of an HTML element, specifically page body and table backgrounds. You can specify an image to set background of your HTML page or table. Note − The background attribute deprecated in HTML5. Do not use this attribute.
How do you put a background color on a body in HTML?
How to Add Background Color in HTML

- Identify the HTML element you’d like to add a background to or create one.
- Choose an HTML background color.
- Add a style attribute to the opening tag.
- Find the “body” CSS selector.
- Change the background color of the body.
How to add a background image in HTML?
To add a background image in HTML, use the CSS property background-image. To add a background image on an HTML element, you can use the style attribute: You can also specify the background image in the
How do I change the background of a class in JavaScript?
You can just create new classes with attached pseudo elements to do this, and use Javascript to switch between them. For example your CSS might look like: .background–first:before { background: url (first.jpg); } .background–second:before { background: url (second.jpg); } .background–third:before { background: url (third.jpg); }
How to include JavaScript in an HTML document?

There are 3 ways to include Javascript in HTML: External Javascript, load a Javascript file – Internal Javascript, add a block of code in the HTML document itself – Inline Javascript, directly add Javascript to an HTML element –
How to make the background image always cover the entire element?
Also, to make sure the entire element is always covered, set the background-attachment property to fixed: This way, the background image will cover the entire element, with no stretching (the image will keep its original proportions):