We can define borders for an element and style them using CSS. The CSS border property is used to define the border properties for an element. It is a shorthand for border-width, border-style and border-color. Furthermore, images can be specified as a border.
Syntax
The syntax of CSS border property is as follows −
Selector {
border: /*value*/
}Example
The following examples illustrate CSS border property −
<!DOCTYPE html>
<html>
<head>
<style>
p {
border: 70px solid transparent;
margin: 15px;
padding: 3px;
border-image: url("https://www.tutorialspoint.com/tensorflow/images/tensorflow.jpg") 30 round;
background-color: beige;
}
</style>
</head>
<body>
<p>TensorFlow is an open source machine learning framework for all developers. It is used for implementing machine learning and deep learning applications.</p>
</body>
</html>Output
This gives the following output −

Example
<!DOCTYPE html>
<html>
<head>
<style>
#d1 {
margin: auto;
width: 60%;
border: 4px solid sienna;
padding: 10px;
background-image: linear-gradient(133deg, #a4c888, #2343e2, #33b329, #d10373);
border-radius: 55px 100px 2px 95px;
}
#d2 {
border: 1.5px solid rosybrown;
padding: 10px;
border-radius: 205px 500px;
}
img {
border-radius: 3% 50%;
display: block;
margin: auto;
}
</style>
</head>
<body>
<div id="d1">
<div id="d2">
<img src="https://www.tutorialspoint.com/openshift/images/openshift-mini-logo.jpg" >
</div>
</div>
</body>
</html>Output
This gives the following output −
