body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: calc(100vh - 26px);
}

h1 {
  font-size: 4.7em;
}

.new {
  border-radius: 24px;
  border: 4px solid;
  background: white;
  border-color: #ccc;
  border-radius: 24px;
  filter: grayscale(1);
  transition: filter 2s, border-color 2s;
}

.new:hover {
  filter: grayscale(0);
  border-color: aquamarine;
}