CSS Rounded Corners

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CSS Rounded Corners

The CSSborder-radius property is used to create rounded corners for elements.

CSS border-radius Property

Theborder-radius property definesthe radius of an element's corners.

This property can be applied to all elements with abackground-color, aborder, or abackground-image.

Here are three examples:

1. Rounded corners for an element with a background color:

Rounded corners!

2. Rounded corners for an element with a border:

Rounded corners!

3. Rounded corners for an element with a background image:

Rounded corners!

Here is the code:

Example

#div1 {
  border-radius: 25px;
  background-color: #73AD21;
  padding: 20px;
  width: 200px;
  height: 150px;
}

#div2 {
  border-radius: 25px;
  border: 2px solid #73AD21;
  padding: 20px;
  width: 200px;
  height: 150px;
}

#div3 {
  border-radius: 25px;
  background-image: url(paper.gif);
  background-position: left top;
background-repeat: repeat;
  padding: 20px;
  width: 200px;
  height: 150px;
}

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Tip: Theborder-radius property is actually a shorthand property for theborder-top-left-radius,border-top-right-radius,border-bottom-right-radius andborder-bottom-left-radius properties.

CSS border-radius - Specify Each Corner

Theborder-radius property can have from one to four values. Here are the rules:

Four values - border-radius: 15px 50px 30px 5px; (first value applies to top-left corner, second value applies to top-right corner, third value applies to bottom-right corner, and fourth value applies to bottom-left corner):

Three values - border-radius: 15px 50px 30px; (first value applies to top-left corner, second value applies to top-right and bottom-left corners, and third value applies to bottom-right corner):

Two values - border-radius: 15px 50px; (first value applies to top-left and bottom-right corners, and the second value applies to top-right and bottom-left corners):

One value - border-radius: 15px; (the value applies to all four corners, which are rounded equally:

Here is the code:

Example

#div1 {
border-radius: 15px 50px 30px 5px; /* four values */
background: #04AA6D;
width: 200px;
  height: 150px;
}

#div2 {
  border-radius: 15px 50px 30px; /* three values */
background: #04AA6D;
width: 200px;
height: 150px;
}

#div3 {
  border-radius: 15px 50px; /* two values */
  background: #04AA6D;
  width: 200px;
height: 150px;
}

#div4 {
  border-radius: 15px; /* one value */
background: #04AA6D;
width: 200px;
  height: 150px;
}

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CSS Elliptical and Circular Shapes

To create elliptical corners, you must specify two values for each radius, separated by a slash /. The first value defines the horizontal radius, and the second value defines the vertical radius.

To create a oval shape (for a rectangular element), or to create a circular shape (for a square element) setborder-radius to 50%.

Example

Create elliptical, oval and circular shapes:

#div1 {
border-radius: 70px / 30px;
background: #04AA6D;
  width: 200px;
  height: 150px;
}

#div2 {
  border-radius: 15px / 50px;
  background: #04AA6D;
  width: 200px;
  height: 150px;
}

#div3 {
border-radius: 50%;
background: #04AA6D;
  width: 200px;
  height: 150px;
}

#div4 {
border-radius: 50%;
background: #04AA6D;
width: 200px;
height: 200px;
}

Try it Yourself »