/* Radius is set for all 4 sides */
border-radius: 10px;
/* top-left-and-bottom-right | top-right-and-bottom-left */
border-radius: 10px 5%;
/* top-left | top-right-and-bottom-left | bottom-right */
border-radius: 2px 4px 2px;
/* top-left | top-right | bottom-right | bottom-left */
border-radius: 1px 0 3px 4px;
/* The syntax of the second radius allows one to four values */
/* first radius / radius */
border-radius: 10px / 20px;
/* first radius => corner point to left or right side*/
/* second radius => corner point to top or bottom side*/
/* radius => corner point to both sides*/#example1 {
border: 2px solid red;
border-radius: 25px;
}
#example2 {
border: 2px solid red;
border-radius: 50px 20px;
}/* The syntax of the first radius allows one to four values */
/* Radius is set for all 4 sides */
border-radius: 10px;
/* top-left-and-bottom-right | top-right-and-bottom-left */
border-radius: 10px 5%;
/* top-left | top-right-and-bottom-left | bottom-right */
border-radius: 2px 4px 2px;
/* top-left | top-right | bottom-right | bottom-left */
border-radius: 1px 0 3px 4px;
/* The syntax of the second radius allows one to four values */
/* (first radius values) / radius */
border-radius: 10px / 20px;
/* (first radius values) / top-left-and-bottom-right | top-right-and-bottom-left */
border-radius: 10px 5% / 20px 30px;
/* (first radius values) / top-left | top-right-and-bottom-left | bottom-right */
border-radius: 10px 5px 2em / 20px 25px 30%;
/* (first radius values) / top-left | top-right | bottom-right | bottom-left */
border-radius: 10px 5% / 20px 25em 30px 35em;
/* Global values */
border-radius: inherit;
border-radius: initial;
border-radius: unset;#example1 {
border: 2px solid red;
border-radius: 25px;
}border-radius: 5px; /* The corners will be round */<!DOCTYPE html>
<html>
<head>
<style>
#rcorners1 {
border-radius: 25px;
background: #73AD21;
padding: 20px;
width: 200px;
height: 150px;
}
#rcorners2 {
border-radius: 25px;
border: 2px solid #73AD21;
padding: 20px;
width: 200px;
height: 150px;
}
#rcorners3 {
border-radius: 25px;
background: url(paper.gif);
background-position: left top;
background-repeat: repeat;
padding: 20px;
width: 200px;
height: 150px;
}
</style>
</head>
<body>
<h1>The border-radius Property</h1>
<p>Rounded corners for an element with a specified background color:</p>
<p id="rcorners1">Rounded corners!</p>
<p>Rounded corners for an element with a border:</p>
<p id="rcorners2">Rounded corners!</p>
<p>Rounded corners for an element with a background image:</p>
<p id="rcorners3">Rounded corners!</p>
</body>
</html>/* Radius is set for all 4 sides */
border-radius: 10px;
/* top-left-and-bottom-right | top-right-and-bottom-left */
border-radius: 10px 5%;
/* top-left | top-right-and-bottom-left | bottom-right */
border-radius: 2px 4px 2px;
/* top-left | top-right | bottom-right | bottom-left */
border-radius: 1px 0 3px 4px;
/* The syntax of the second radius allows one to four values */
/* (first radius values) / radius */
border-radius: 10px / 20px;
/* (first radius values) / top-left-and-bottom-right | top-right-and-bottom-left */
border-radius: 10px 5% / 20px 30px;
/* (first radius values) / top-left | top-right-and-bottom-left | bottom-right */
border-radius: 10px 5px 2em / 20px 25px 30%;
/* (first radius values) / top-left | top-right | bottom-right | bottom-left */
border-radius: 10px 5% / 20px 25em 30px 35em;