how to make rounded corners in html code example

Example 1: css rounded corners

/* Set rounded corners with border-radius property */

.class {
  border-radius: 4px;
}

.circle {
  border-radius: 50%;
}

Example 2: how to round the corners of a div outline in css

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

Example 3: button edges rounded css

button {
  border-radius: 25px;
}