* {
    margin: 0;
    box-sizing: border-box;
}

html {
    width: 100%;
    height: 100%;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    line-height: 1.25;
    -webkit-text-size-adjust: 100%; /* Prevents Safari from auto-resizing text. */
    background-color: aliceblue;
  background-image: url("images/graphpaper.svg");
  background-size: cover;      /* makes it fill the whole screen */
  background-repeat: no-repeat;
    color: grey;
  
    .image-middle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.image-middle img {
    width: 300px;   /* sets the width */
  height: auto;   /* keeps aspect ratio */
}

}