How to set the shadow using Css

Set the shadow using box-shadow class property. See the example below.

<style> 

 .box
 {
   width:300px;
   height:100px;
   background-color:blue;
   box-shadow: 5px 5px 10px #313131;
 }

</style>

Create box class and assign it to the div.

 <div class="box"></div>