css style round code example

Example 1: How to make a round corner in CSS

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

Example 2: css round outline

/*A box-shadow can be used for a similar effect*/

.your-box-or-button-class{
box-shadow: 0 0 3px #000000;
}