To set the shadow effect, use the textShadow property in JavaScript.
Example
You can try to run the following code to return the shadow effect of a text with JavaScript −
<!DOCTYPE html> <html> <body> <button onclick = "display()">Set Text Shadow</button> <div id = "myID"> This is Demo Text! This is Demo Text! This is <br>This is Demo Text! This is Demo Text! This is Demo Text! This is Demo Text!<br> This is Demo Text!<br> This is Demo Text! This is Demo Text! This is Demo Text! This is Demo Text! </div> <script> function display() { document.getElementById("myID").style.textShadow = "2px 2px 2px #ff0000,20px 5px 2px #F1F1F1"; } </script> </body> </html>