Modifying CSS in JQuery does not seem to have a lasting effect

My webpage uses JQuery to dynamically hide and show different parts of the content when a button is clicked. However, I am facing an issue where the changes only last for a brief moment before reverting back to the default styling...

Here is a snippet of the code:

$(document).ready(function(){
$("#NavMenu a").on('click', function() {

   var chosen = $(this).attr("id");

   $(".SubPage").css('display', 'none');
   $(".SubPage, #" + chosen).css('display', 'block');

 });
});

Where SubPage is the class applied to all sub-articles, NavMenu is the id of the main menu, and each sub-page has its own unique id stored in the "chosen" variable.

* Even when I change the properties being manipulated, such as 'font-size' instead of 'display', the changes still flicker briefly before reverting back.

Answer №1

I've made some improvements to your JSFiddle to ensure it functions correctly.

I removed unnecessary parts of the code to streamline it.

One of your selectors was incorrect:

 $(".SubPage, #" + chosen).css('display', 'block');

This should be revised to:

 $(".SubPage#" + chosen).css('display', 'block');

Additionally, consider utilizing the simpler .show() and .hide() methods:

 $("#NavMenu a").on('click', function() {
    var chosen = $(this).attr("id");
   $(".SubPage").hide();
   $(".SubPage#" + chosen).show();
  });

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