/* Reset default margins */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  width: 100%;
  font-family: Arial, sans-serif;
}

/* Background image full-screen */
.background {
  background: url('central.jpg.jpg') no-repeat center center;
  background-size: cover;
  height: 100vh;
  width: 100vw;
}