html {
  height: 100%; }

body {
  min-height: 100%;
  background-image: url("../i/field.jpg");
  background-size: cover;
  background-position: center top; }

.sign {
  width: 100%;
  height: 100vh;
  background-image: url("../i/sign.png");
  background-position: center bottom;
  background-repeat: no-repeat;
  background-size: contain; }