html, body {
  height: 100%;
  margin: 0;
  overflow: auto;
}

body {
    color: black;
    font-family: 'arial,sans-serif';
    font-size: 19px;
    letter-spacing: 1.1px;
    background-color: #9ACC99;
    cursor: url(img/tomie1.png), auto;
}

a:hover, 
button:hover {
 cursor: url(img/tomie2.png), auto;
}
div {
    position: relative;
    width: 1600px;
    background-color: #9ACC99;
    border: 5px solid #339933;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    padding: 20px;
    top: 170px;
}
.child{
    position: absolute;
    border: 10px solid #339933;;
    box-sizing: border-box;
    top: 0px;
    width: 100%;
    background-color: #339933;
    padding: 0px;
}
img {
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.back {
text-align: right;
width: auto;
background-color: #339933;
position: absolute;
top: 0;
border: none;
padding: 0px;
 }