Html Satisfying button

 
 <style>
   .bt{
     background-color: grey;
     padding: 10px 10px 10px 10px;
     color: white;
     border-color: white;
     border-style: solid;
     border-radius: 5px;
     box-shadow: 5px 5px grey;
     transition: 0.15s;
   }
   
   .bt:active{
     transition: 0.15s;
     margin-top: 5px;
     margin-left: 5px;
     box-shadow: none;
   }
   
   body{
     background-color: black;
   }
 </style>
 
 <button class="bt">
   <strong>
   ButtonText
   </strong>
 </button>