body {
  background-color: lightgray;
}
.buttons {
  display: flex;
  justify-content: center; /* horizontal zentrieren */
  align-items: center; /* vertikal zentrieren */
  height: 100vh; /* gesamte Bildschirmhöhe */
  margin: 0;
  gap: 20px;
}

button {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: bold;
  border: none;
  outline: 1px dotted rgb(37, 37, 37);
  outline-offset: -4px;
  cursor: pointer;
  background: blue;
  box-shadow: inset -1px -1px #292929, inset 1px 1px #fff,
    inset -2px -2px rgb(158, 158, 158), inset 2px 2px #ffffff;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 5px 30px;
  color: white;
}

button:active {
  box-shadow: inset -1px -1px #fff, inset 1px 1px #292929,
    inset -2px -2px #ffffff, inset 2px 2px rgb(158, 158, 158);
}

.button-1 {
  background: hsl(0deg 0% 75%);
  color: black;
}