border rounded corners code example

Example 1: how to round the corners of a div outline in css

div {
  outline: auto;
  outline-style: round;
}

Example 2: How to make a round corner in CSS

#roundCornerID {
    border-radius: 30%;
    width: 200px;
    height: 150px;   
}

Example 3: css border radius

-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;