html, body{
    height: 100%;
}

/* select all <a> elements with class "button" */
a.button {
  /* use inline-block because it respects padding */
  display: inline-block;
  /* padding creates clickable area around text (top/bottom, left/right) */
  padding: 1em 1em;
  /* round corners */
  border-radius: 5px;
  /* remove underline */
  text-decoration: none;
  /* set colors */
  color: #FFFCE1;
  background-color: #43AAC7;
}