add shadow css js code example

Example 1: box shadow javascript style change

document.getElementById("myDIV").style.boxShadow = "10px 20px 30px blue";

Example 2: html make box shadow

box-shadow: 0 20px 20px rgba(0, 0, 0, 0.2), 0px, 0px, 50px rgba(0, 0, 0, 0.2)