@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

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

body {
  position: relative;
  background-color: #e1e1e1;
  font-family: 'Roboto', sans-serif;
}

h1 {
  position: absolute;
  top: 100px;
  left: 0;
  width: 100%;
  text-align: center;
}

.container {
  width: 100%;
  max-width: 1170px;
  margin: 0 auto;

  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
}

.key__inner {
  margin: 0 auto;
  display: flex;
  flex-direction: row;

  text-align: center;
}

.key {
  border: 1px solid #999;
  background-color: #eee;
  box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);
  font-size: 20px;
  font-weight: bold;

  padding: 20px;
  margin: 10px;
  min-width: 100px;
  position: relative;
}

.key span {
  position: absolute;
  width: 100%;
  bottom: -24px;
  left: 0;
  text-align: center;
  font-size: 12px;
}