.panel {
    width: 500px;
    height: 300px;
    background-color: #fff;
  
    box-shadow: 0px 0px 20px 20px rgb(172, 212, 235);
    /* in order: x offset, y offset, blur size, spread size, color */
    /* blur size and spread size are optional (they default to 0) */
  }


  body{
    height: 100vh;
}
.container {
    height: 100%;
    margin-top: 100px;
}