how to create a shadow box in css code example

Example 1: css box shadow

/* offset-x | offset-y | blur-radius | spread-radius | color */
box-shadow: 2px 2px 2px 1px rgba(0, 0, 0, 0.2);

Example 2: css box shadow

#example1 {
  box-shadow: 10px 10px 8px #888888;
}