preventing the dropdown navigation bar from causing elements to shift to the side

I am facing an issue with my dropdown navigation bar where elements such as buttons or images get pushed to the right side when the drop-down options appear. How can I prevent this from happening?

Navbar:

<nav id="nav1">
...

CSS:

nav#nav1 li a {
    display: block;
    padding: 3px 8px;
   ...
}
...

JavaScript functions for dropdown:

function DropDown2() {
var t = document.getElementById("Droplist2");
t.className = "DropDown";
}
...

If you are wondering why I have taken a complex approach in creating the navigation bar, it is because I need to incorporate JavaScript.

Here is JS fiddle example: http://jsfiddle.net/fNPvf/10015/

In the JS fiddle, notice how the dropdown menu pushes the content downwards when hovering over "Data Validation".

javascripthtmlcssnavigationbar

Answer №1

To achieve the desired effect, you will need to utilize absolute positioning along with a higher z-index on either the containing <div> or the <ul> itself. Simply include the following code snippet and adjust the z-index value accordingly:

nav#menu ul{ 
    position: absolute;
    top: 0;
    z-index: 10;
}

Check out the live demonstration here

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