<div>Hover Me (^_^)!!!</div>

@import url("https://fonts.googleapis.com/css2?family=Exo:wght@600&display=swap");

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

body {
  width: 100vw;
  min-height: 100vh;
  font-family: "Exo", Arial, sans-serif;
  background-color: #222;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.5rem;
}

div {
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 10rem;
  padding: 10px 30px;
  min-height: 90px;
  cursor: pointer;
  background-image: linear-gradient(to right, #0f9, #09f);
  transition: all 0.28s linear;
}

div:hover {
  color: #f36;
  background-image: linear-gradient(to right, #09f, #0f9);
}