CSS3 - Rounded Corners

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CSS3 Rounded corners are used to add special colored corner to body or text by using the border-radius property.A simple syntax of rounded corners is as follows −

#rcorners7 {
   border-radius: 60px/15px;
   background: #FF0000;
   padding: 20px; 
   width: 200px;
   height: 150px; 
}

The following table shows the possible values for Rounded corners as follows −

Sr.No.	Value & Description
1	border-radius Use this element for setting four boarder radius property
2	border-top-left-radius Use this element for setting the boarder of top left corner
3	border-top-right-radius Use this element for setting the boarder of top right corner
4	border-bottom-right-radius Use this element for setting the boarder of bottom right corner
5	border-bottom-left-radius Use this element for setting the boarder of bottom left corner

Example

This property can have three values. The following example uses both the values −

Live Demo

<html>
   <head>
      <style>
         #rcorners1 {
            border-radius: 25px;
            background: #8AC007;
            padding: 20px;
            width: 200px;
            height: 150px;
         }
         #rcorners2 {
            border-radius: 25px;
            border: 2px solid #8AC007;
            padding: 20px; 
            width: 200px;
            height: 150px;
         }
         #rcorners3 {
            border-radius: 25px;
            background: url(/css/images/logo.png);
            background-position: left top;
            background-repeat: repeat;
            padding: 20px; 
            width: 200px;
            height: 150px;
         }
      </style>
   </head>

   <body>
      <p id = "rcorners1">Rounded corners!</p>
      <p id = "rcorners2">Rounded corners!</p>
      <p id = "rcorners3">Rounded corners!</p>
   </body>
</html>

It will produce the following result −

Each Corner property

We can specify the each corner property as shown below example −

Live Demo

<html>
   <head>
      <style>
         #rcorners1 {
            border-radius: 15px 50px 30px 5px;
            background: #a44170;
            padding: 20px; 
            width: 100px;
            height: 100px; 
         }
         #rcorners2 {
            border-radius: 15px 50px 30px;
            background: #a44170;
            padding: 20px;
            width: 100px;
            height: 100px; 
         }
         #rcorners3 {
            border-radius: 15px 50px;
            background: #a44170;
            padding: 20px; 
            width: 100px;
            height: 100px; 
         }
      </style>
   </head>

   <body>
      <p id = "rcorners1"></p>
      <p id = "rcorners2"></p>
      <p id = "rcorners3"></p>
   </body>
<body>

It will produce the following result −