Overlapping elements with Z index using CSS
Using the CSS Z-Index property, developers can stack elements on top of each other. Z-Index can have positive or negative values.
Note - If the overlapping element does not specify a z-index, the element will display the last mention of the document.
Example
Let’s look at an example of the z-index attribute -
强> Live Demonstration
<!DOCTYPE html>
<html>
<head>
<style>
p {
margin: 0;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
div{
margin: auto;
position: absolute;
top:0;
left: 0;
right: 0;
bottom: 0;
}
div:first-child {
background-color: orange;
width: 270px;
height: 120px;
z-index: -2;
}
div:last-child {
width: 250px;
height: 100px;
z-index: -1;
background-color: turquoise;
}
</style>
</head>
<body>
<div></div>
<p>Fortran was originally developed by a team at IBM in 1957 for scientific calculations...................</p>
<div>
</div>
</body>
</html>Output
Here is the output of the above code:
Example
Let’s see another one Example of z-index attribute:
Live Demo
<!DOCTYPE html>
<html>
<head>
<style>
p {
background: url("https://www.tutorialspoint.com/tensorflow/images/tensorflow-mini-logo.jpg");
background-origin: content-box;
background-repeat: no-repeat;
background-size: cover;
box-shadow: 0 0 3px black;
padding: 20px;
background-origin: border-box;
}
</style>
</head>
<h2>Demo</h2>
<body>
<p>This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text. This is demo text. This is demo text. This is demo text.
This is demo text.</p>
</body>
</html>Output
The following is the output of the above code-
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