.MainDiv {
  border: 0px outset red;
  text-align: center;
  font-size: 20px;
  z-index:100;
 position:relative
}
  
body {
  font-family: Arial, Helvetica, sans-serif;
    background-color: #660033;
}
svg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index:1;
}


.links {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 18px;
    font-family: sans-serif;
}
a {
    text-decoration: none;
    color: black;
    margin-left: 1em;
}
a:hover {
    text-decoration: underline;
}
a img.icon {
    display: inline-block;
    height: 1em;
    margin: 0 0 -0.1em 0.3em;
}