body{
  background: linear-gradient(41deg, red, rgb(5, 5, 144));

}
.richblue {
margin-top: 4%;
 margin-left: 3%;
  background-color:#fff;
  color:rgb(0,0,200);
  border-radius:12px;
  padding:1% 2%;
  font-size:1em;

    box-shadow: 0 0px 15px rgba(0, 0, 200, 0.2);
}
.richblue:hover {
   background-color: rgb(48, 48, 227);
   color: white;
}
.richblue:hover .btn{
  color: white;
}

.btn{
  text-decoration: none;
  font-size: large;
}