How can I update the background color based on a div class change?

Question

How can I update the background color based on a div class change?

I have created a navigation menu that appears when you click on a button. The class of the div for the nav changes upon clicking the button. I am looking to darken the background color of the body when the navigation menu is open, and potentially more changes in the future. I have come up with several possible methods to achieve this, but I'm not sure which would be the most straightforward or even feasible.

Option 1: One approach could involve altering the class or div of the body when the button is clicked. This solution seems simple if it's possible to set a class for the entire body element.

Option 2: Another method might involve using JavaScript to modify individual elements. While this could work, it may require more code than necessary.

Option 3: I attempted to use .closed > body, but found that this only allows for changes within a specific parent container. I also tried .closed < bodyand experimented with the ~ operator, but none of these produced the desired outcome.

If anyone has any advice or suggestions on how to tackle this issue, I would greatly appreciate it. Thank you.

javascript html css

Answer 1

Answer №1

If you want to change the background color of the body element when clicking on the first navigation element, this code should do the trick:

var navElements = document.getElementsByTagName('nav');
navElements[0].addEventListener('click', function(event){
   var bodyElement = document.getElementsByTagName('body');
   bodyElement[0].style.backgroundColor = "your desired color";
});

Answer 2

If you want to change the background color of the body element when clicking on the first navigation element, this code should do the trick:

var navElements = document.getElementsByTagName('nav');
navElements[0].addEventListener('click', function(event){
   var bodyElement = document.getElementsByTagName('body');
   bodyElement[0].style.backgroundColor = "your desired color";
});

How can I update the background color based on a div class change?

Answer №1

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