svg{
  background-color: #ead9ca;
}
.trava{
  animation: brel 7s infinite;
}
@keyframes brel {
  0%{fill: #000000} 50%{fill: #5686b8} 100%{fill: #000000}
}
.krava{
  animation: brloh 7s infinite;
}
@keyframes brloh {
  0%{fill: #000000} 50%{fill: #ad7171} 100%{fill: #000000}
}