* {
  margin: 0;
  padding: 0;
  box-sizing: content-box;
}

body {
  background-image: radial-gradient( circle 767px at 10.2% 22.1%,  rgba(128,128,128,1) 0%, rgba(192,192,192,1) 90% );
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.buttons {
  min-width: 200px;
  display: flex;
  justify-content: space-around;
}

.buttons a {
  text-decoration: none;
  font-size: 25px;
  width: 60px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  background: #000000;
  color: #ffffff;
  border-radius: 50%;
  box-shadow: 2px 2px 50px rgba(0, 0, 0, .5);
  transition: all .4s ease-in-out;
}

.buttons a:hover {
  transform: scale(1.2);
}