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

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Mulish", sans-serif;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  display: flex;
  text-align: center;
  align-items: center;
  justify-content: center;
  background-image: linear-gradient(15deg, #fed54a, #ff9347);
}

.key {
  display: inline-flex;
  padding: 10px 20px;
  border: 1px solid #999;
  margin: 10px;
  min-width: 120px;
  font-size: 20px;
  font-weight: bold;
  font-family: inherit;
  position: relative;
  background-color: #fff;
}

.key small {
  position: absolute;
  left: 0px;
  top: -30px;
  text-align: center;
  width: 100%;
  color: #555;
  font-size: 14px;
}