body {
  background-image: url("/images/calculator.jpg");
  background-size: 100vw 100vh;
  background-repeat: no-repeat;
}

.background {
  background-color: #3E4B5E;
  opacity: 97%;
  height: 100vh;
  width: 100vw;
  position: absolute;
  top: 0;
  left: 0;
}

.container {
  position: absolute;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-rows: 1fr auto 1fr;
  width: 100%;
  height: 100%;
  grid-template-areas: ". line1 ." "line2 text line3" ". line4 .";
}
.container--text {
  position: relative;
  font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande", "Lucida Sans", Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 20px;
  color: #E2D2B7;
  text-align: center;
  grid-area: text;
}
.container--line {
  width: 1vh;
  height: 15vh;
  background-color: #E2D2B7;
  position: relative;
}
.container--line__vertical1 {
  grid-area: line1;
  justify-self: center;
  align-self: center;
}
.container--line__horizontal1 {
  grid-area: line2;
  rotate: 90deg;
  justify-self: center;
  align-self: center;
}
.container--line__horizontal2 {
  grid-area: line3;
  rotate: 90deg;
  justify-self: center;
  align-self: center;
}
.container--line__vertical2 {
  grid-area: line4;
  justify-self: center;
  align-self: center;
}

h1 {
  line-height: 5vh;
}