html{box-sizing: border-box;}
:before,:after {box-sizing:inherit}
html { background-image: url(images/prize-stand.png);
    background-size: cover;
    margin:auto;
    background-repeat:no-repeat;}

div.prizebutton{
#button {
height: auto;
width:450px;
margin-left:410px;
margin-top: 30px;
}
}