style.css

/* Set height to 100% for body and html to enable the background image to cover the whole page: */
body,
html {
  height: 100%;
  margin-left: 0px;
  margin-top: 0px;
  margin-right: 0px;
}

.bgimg {
  /* Background image */
  background-image: url("https://static.pexels.com/photos/214238/pexels-photo-214238.jpeg");
  /* Full-screen */
  height: 100%;
  /* Center the background image */
  background-position: center;
  /* Scale and zoom in the image */
  background-size: cover;
  /* Add position: relative to enable absolutely positioned elements inside the image (place text) */
  position: relative;
  /* Add a white text color to all elements inside the .bgimg container */
  color: white;
  /* Add a font */
  font-family: "Courier New", Courier, monospace;
  /* Set the font-size to 25 pixels */
  font-size: 25px;
  font-weight: bold;
}

/* Position text in the top-left corner */
.toptext {
  position: absolute;
  top: 90%;
  left: 50%;
  transform: translate(-50%, -50%);
  top: 10%;
  color: black;
  font-family: "East Sea Dokdo", cursive;
  font-size: 30px;
  text-align: center;
}

/* Position text in the bottom-left corner */
.bottomtext {
  position: absolute;
  top: 90%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: black;
  font-family: "East Sea Dokdo", cursive;
  font-size: 30px;
  text-align: center;
}

/* Position text in the middle */
.middle {
  position: absolute;
  width: 400px;
  height: 375px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  background-color: rgba(0, 128, 0, 0.4);
  border-style: dotted;
  border-width: 2px;
  border-color: grey;
  border-radius: 10px;
  font-family: "Mountains of Christmas", cursive;
  font-size: 30px;
}

/* Style the <hr> element */
hr {
  margin: auto;
  width: 40%;
}