give a down shadow css code example
Example 1: css box shadow
#example1 {
box-shadow: 10px 10px 8px #888888;
}
Example 2: box shadow
box-shadow: 0 0 10px 0 rgba(0,0,0,.1);
// copy this
Example 3: change button shaddow css
button{
2.5px 2.5px 2px #888;
}