button{
    background-image: linear-gradient(black,purple);
    color: white;
    border-radius: 15px;
    height: 50px;width: 70px;
    
}
body{
    background-color: black;
    color: white;
  animation-name: coloranimate;
  animation-duration: 7s;
  animation-iteration-count: infinite;
  animation-delay: 3s;

} 

@keyframes coloranimate{
    from{background-color: black;color: white;}
    to{background-color: white;color: black;}
    
}
a{
    color: white;
    width: 50px;
}
#keeru{
    color: white;
}